We provide amines practice exercises, instructions, and a learning material that allows learners to study outside of the classroom. We focus on amines skills mastery so, below you will get all questions that are also asking in the competition exam beside that classroom.
List of amines Questions
| Question No | Questions | Class |
|---|---|---|
| 1 | egest a route by which the following conversion can be accomplished. -NH-CH3 NH2 |
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| 2 | Write the basicity order of the following. ( begin{array}{ll}text { сн }_{3}-c overbrace{C}^{mathscr{Y}}^{mathrm{NH}} & mathrm{cH}_{3}-mathrm{cH}_{2}-mathrm{NH}_{2} quadleft(mathrm{cH}_{3}right)_{2} mathrm{NH} \ & mathrm{NH}_{3}end{array} ) (I) ( A cdot(|)>(1)>(| 1)>(1 V) ) B. (I) > (III) > (II) > (IV) ( c cdot(| I)>(I)>(|)>(I V) ) D. (I) > (II) > (III) > (IV) |
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| 3 | 0. 64 How will you carry out the following conversion? NH2 NO2 Br |
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| 4 | Diazomethane was photolysed to generate singlet carbine which was treated with cis-2-butene. The main product(s) of the reaction is/are: A. cis-1, 2-dimethylcyclopropane B. trans-1, 2-dimethylcyclopropane c. mixture of ( (A) ) and ( (B) ) D. Ethylcyclopropane |
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| 5 | ( boldsymbol{C H}_{3} boldsymbol{C H}_{2} boldsymbol{C l} stackrel{N a C N}{longrightarrow} boldsymbol{X} stackrel{boldsymbol{P t} / boldsymbol{H}_{2}}{longrightarrow} ) ( boldsymbol{Y} frac{text {Acetic}}{text {anhydride}} boldsymbol{Z} ) In the above sequence, ( Z ) is: A. ( C H_{3} C H_{2} C H_{2} N H C O C H_{3} ) в. ( C H_{3} C H_{2} C H_{2} N H_{2} ) c. ( C H_{3} C H_{2} C H_{2} C O N H C H_{3} ) D. ( C H_{3} C H_{2} C H_{2} C O N H C O C H_{3} ) |
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| 6 | ( boldsymbol{C a} boldsymbol{C}_{2} frac{boldsymbol{H y d r o l y s i s}}{boldsymbol{A}} boldsymbol{A} frac{boldsymbol{R e d} h_{o t}}{boldsymbol{C u} boldsymbol{t u b e}} ) ( frac{boldsymbol{H} boldsymbol{N} boldsymbol{O}_{3}-boldsymbol{H}_{2} boldsymbol{S} boldsymbol{O}_{4}}{boldsymbol{5} boldsymbol{0}-boldsymbol{6} boldsymbol{0}^{0} boldsymbol{C}} boldsymbol{C} stackrel{boldsymbol{F} boldsymbol{e}+boldsymbol{H} boldsymbol{C l}}{longrightarrow} ) ( boldsymbol{D} stackrel{boldsymbol{N a N O}_{2}+boldsymbol{H C l}, mathbf{0}^{0} boldsymbol{C}}{longrightarrow} boldsymbol{E} ) In the reaction sequence given above, ( boldsymbol{E} ) is: A. aniline B. benzene diazonium chloride c. phenyl osazone D. benzoyl chloride |
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| 7 | The IUPAC name of isobutylamine is: A. isopropyl methyl amine B. isopropyl methanamine c. 2 -methyl-1-propanamine D. 2-methyl-3-propanamine |
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| 8 | The IUPAC name of the compound is: [ begin{array}{l} C H_{2}-C H-C H_{2}-C H_{2} \ N_{2} quad C H_{3} quad quad_{N H_{2}} end{array} ] A. 2 – Methyl – butane – 1,4 – diamine B. 3 – Methyl – butane – 1, 4 – diamine C . 2 – Methyl – butane – 1, 3 – diamine D. 2 – Methyl pentane – 1, 5 – diamine |
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| 9 | Identify the highest soluble amine from the following. A. Primary amine B. Secondary amine. c. Tertiary amine D. none of these |
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| 10 | ( boldsymbol{C H}_{3} boldsymbol{C H}_{2} boldsymbol{B r} stackrel{boldsymbol{a q} boldsymbol{K O H}}{rightarrow} boldsymbol{A} stackrel{boldsymbol{K M n O}_{4} / boldsymbol{H}^{+}}{rightarrow} ) ( boldsymbol{B} frac{N boldsymbol{H}_{3}}{Delta} boldsymbol{C} frac{boldsymbol{B} boldsymbol{r}_{2}}{a l k a l i} boldsymbol{D} ) D is: A ( cdot C H_{3} B r ) в. ( C H_{3} C O N H_{2} ) c. ( C H_{3} N H_{2} ) D. ( C H_{2} B r_{2} ) |
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| 11 | In nitroalkanes ( -N O_{2} ) group is converted to ( -N H_{2} ) group by using the reagent: A. ( S n / H C l ) B. ( Z n ) dust c. ( Z n / N H_{4} C l ) D. ( Z n / N a O H ) |
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| 12 | The reactivities of these ions in azo- coupling reactions will be in the order: ( mathbf{A} cdot 3<1<4<2 ) В. ( 1<4<2<3 ) c. ( 1<2<3<4 ) D. ( 3<1<2<4 ) |
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| 13 | The IUPAC name of is : [ mathrm{CH}_{3}-mathrm{CH}_{2}-mathrm{NH}-mathrm{CH}_{3} ] A. Methyl ethyl amine B. 1-methyl amino ethane c. N-methyl ethanamine D. N-ethyl ethanamine |
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| 14 | Which compound is a secondary alcohol? A. Butan-1-ol B. Butan-2-ol c. Isobutyl alcohol D. 2-Methylpropan-2-ol |
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| 15 | Give reasons: Aliphatic amines are stronger bases than ammonia. |
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| 16 | Which of the following is a ( 3^{circ} ) amine? A. Propan -2 – amine B. N-Methyl ethanarnine c. Allyl amine D. ( N, N- ) Diethylbutan ( -1- ) amine |
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| 17 | In case of substituted aniline the group which decreases the basic strength is : A. ( -O C H_{3} ) в. ( -C H_{3} ) ( mathrm{c} cdot-N H_{2} ) D. ( -C_{6} H_{5} ) |
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| 18 | The IUPAC name is: [ begin{array}{l} C H=C H \ C H O N H_{2} end{array} ] A. 1- Amino prop – 2 – enal B. 3-Amino prop – 2 – enal c. ( 1- ) Amino -2 – formyl ethane D. 3 – Amino -1 -oxo prop – 2 – ene |
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| 19 | Acid anhydride on reaction with primary amine give: A. Amide B. Imide c. Secondary amine D. Imine |
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| 20 | The boiling point of amines are higher than that of hydrocarbon because: A. they form inter molecular H-bonds B. they are polar c. they form ionic bonds D. both A and |
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| 21 | In increasing order of boiling point : ( boldsymbol{C}_{2} boldsymbol{H}_{5} boldsymbol{O H}, quadleft(boldsymbol{C H}_{3}right)_{2} boldsymbol{N} boldsymbol{H}, quad boldsymbol{C}_{2} boldsymbol{H}_{5} boldsymbol{N} boldsymbol{H} ) |
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| 22 | Arrange the following in the decreasing order of solubility in water: ¡) ( boldsymbol{C}_{boldsymbol{6}} boldsymbol{H}_{boldsymbol{5}} boldsymbol{N} boldsymbol{H}_{boldsymbol{2}} ) ii) ( left(C_{2} H_{5}right)_{2} N H ) iii) ( boldsymbol{C}_{2} boldsymbol{H}_{5} boldsymbol{N} boldsymbol{H}_{2} ) A. i > ii > ii ( mathbf{c} . ) iii ( >mathbf{i}>mathrm{i} mathrm{i} ) D. iii >ii > |
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| 23 | Hofmann’s bromamide reaction is to convert: A. acid to alcohol B. alcohol to acid c. amide to amine D. amine to amide |
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| 24 | Term tertiary, secondary and primary amine represents the: A. number of amino groups B. nature of C atom c. degree of substitution on nitrogen D. degree of uunsaturation |
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| 25 | How many primary amines are possible with the formula ( C_{4} H_{11} N ? ) A. B. 2 ( c cdot 3 ) D. 4 |
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| 26 | Which of the following is a heterocyclic amine? A. Aniline B. Piperidine c. Benzylamine D. None of these |
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| 27 | toppr Q Type your question ( A ) ( B ) ( c ) ( D ) |
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| 28 | Q. 43 What is Hinsberg reagent? 1 . |
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| 29 | In the given pair of compounds, in which pair second compound has higher boiling point than first compound? 4 and в. НО( – )СН( _{2}- )СН( _{2}- )ОН апа ( C )Нз( _{3}- )СН( _{2}- )ОН ( c ) and ( D ) and |
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| 30 | Predict respectively’ ( X^{prime} ) and ( ^{prime} Y^{prime} ) in the following reactions ( boldsymbol{A r}-boldsymbol{N} boldsymbol{H}_{2} stackrel{boldsymbol{X}}{longrightarrow} boldsymbol{A} boldsymbol{r}-dot{boldsymbol{N}} equiv ) ( N . C l^{-} quad^{Y} quad A r-C l ) A. ( N a N O_{3} & C l_{2} ) в. ( N a N O_{3}-H C l & H C l ) c. ( N a N O_{2}-H C l & C u / H C l ) D. ( N a N O_{2}-H C l & N a N H_{2} ) |
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| 31 | When benzene diazonium chloride is treated with cuprous chloride in ( boldsymbol{H} boldsymbol{C l} ) chlorobenzene is formed. This reaction is called: A. Perkin reaction B. Hinsberg reaction c. Gattermann reaction D. Sandmeyer reaction |
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| 32 | What are the products of the above reaction? ( mathbf{A} cdotleft(C H_{3}right)_{2} C H-N Hleft(C H_{3}right) ) and ( C O ) B. ( left(C H_{3}right)_{2} C H-Nleft(C H_{3}right)_{2} ) and ( C O ) ( mathbf{c} cdotleft(C H_{3}right)_{2} C H-N Hleft(C H_{3}right) ) and ( C O_{2} ) ( mathrm{D} cdotleft(C H_{3}right)_{2} C H-Nleft(C H_{3}right)_{2} ) and ( C O_{2} ) |
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| 33 | Which of the following will not undergo diazotisation? A. m-toluidine B. Aniline c. p-aminophenol D. Benzyl amine |
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| 34 | Which one of the following is aromatic amine? ( A ) B. ( c ) D. Both ( A ) and ( B ) |
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| 35 | Q.44 Why is benzene diazonium chloride not stored and is used immediately after its preparation? |
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| 36 | The colour of dye formed in the reaction between benzene diazonium chloride and phenol is: A . yellow B. orange c. purple D. blue |
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| 37 | Which of the following arylamines will not form a diazonium salt on reaction with sodium nitrite in hydrochloric acid? A. m-Ethylaniline B. p-Aminoacetophenone c. 4 -chloro-2-nitroaniline D. N-Ethyl-2-methyaniline |
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| 38 | Number of isomeric primary amines obtained from ( C_{4} H_{11} N ) are : ( A cdot 3 ) B. 4 ( c cdot 5 ) D. |
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| 39 | Q Type your question be : ( mathbf{A} ) B. ( c ) D. |
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| 40 | Paino ulsion between bulky group causes roup causes difficulty in Steric repulsion bet Janarity of atomic orbital involved vtent of resonance decreases and du berties like basicity, acidity, bond le hital involved in resonance. Due to reases and due to this different cidity, bond length and dipole this extent of reso properties like moment changes. 16. Which is more basic? Me Me (a) N (b) O NH MeMe Me 1 Me (c) YY U (8) O (d) NOVNO, |
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| 41 | e compounds given in Column I with the items given in Column II. Column! Column II Benzene sulphonyl chloride 1. Zwitter ion Sulphanilic acid 2. Hinsberg reagent Alkyl diazonium salts 3. Dyes Aryl diazonium salts Conversion to alcohols B. C. D. |
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| 42 | In the above given chemical reaction, the compounds ( A ) and ( B ) respectively, are : A. Nitrobenzene and chlorobenzene B. Nitrobenzene and fluorobenzene c. Phenol and benzene D. Benzene diazonium chloride and fluorobenzene |
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| 43 | What is B? | 12 |
| 44 | Give plausible explanation for each of the following: (i) Why are amines less acidic than alcohols of comparable molecular masses? (ii) Why do primary amines have higher boiling point than tertiary amines? (iii) Why are aliphatic amines stronger bases than aromatic amines? |
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| 45 | The solubility of diethyl ether in water is comparable with that of: A. ethanamine B. chlorobutane c. 1-butanol D. ethanol |
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| 46 | 22 Which of the following compound will not undergo azo coupling reaction with benzene diazonium chloride? (a) Aniline (b) Phenol (c) Anisole (d) Nitrobenzene |
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| 47 | Type of Hybridisation of ( N ) and ( C- ) ( N-C ) bond angle in ( left(C H_{3}right)_{3} N ) are and ( _{-}–_{-}- ) respectively ( mathbf{A} cdot s p^{3}, 108^{circ} ) B. ( s p^{2}, 120^{circ} ) c. ( s p^{3}, 109^{circ} 28^{prime} ) D. ( s p^{2}, 117.5^{circ} ) |
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| 48 | Compound ( A ) when reacted with ( P C l_{5} ) and then with ammonia gave ( boldsymbol{B} . boldsymbol{B} ) when treated with bromine and caustic potash produced ( C . C ) on treatment with ( H C l ) and ( N a N O_{2} ) at ( 0^{circ} C ) and then on boiling produced ortho-cresol. Compound ( boldsymbol{A} ) is : A . ( o ) -Toluic acid B. ( o ) -Chlorotoluene c. ( o ) -Bromotoluene D. m-Toluic acid |
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| 49 | If all the amines are represented by the formula ( boldsymbol{R}-boldsymbol{N} boldsymbol{H}_{2}, ) the value of ( mathrm{R} ) in all the amines is: A ( cdot C_{3} H_{7} ) в. ( C_{4} H_{9} ) c. ( C_{5} H_{11}- ) D. ( C_{2} H_{5} ) |
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| 50 | Which of the following amino acid has pH greater than ( 7 ? ) A. Glutamic acid B. Lysine c. Glycine D. Alanine |
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| 51 | Which of the following explode on heating? A . Azides B. Sulphates c. chlorides D. Phosphides |
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| 52 | ( infty ) 80 ( frac{80}{00} ) 900 |
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| 53 | The chemical name for melamine is: A . 1,3,5 -Triamino- 2,4,6 -triazine B. 1,3,5-Triazine-2,4,6-triamine c. 2-Amino-1,3,5-triazine D. 2,4-Diamino 1,3,5-triazine |
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| 54 | Q. 38 What is the role of HNO, in the nitrating mixture used for nitration of benzene? the trophila Not on roosti |
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| 55 | One word answer Write the IUPAC name of |
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| 56 | The correct order of ( K_{b} ) value of following is: ( left(boldsymbol{C}_{2} boldsymbol{H}_{5}right)_{2} ddot{boldsymbol{N}} boldsymbol{H}, boldsymbol{N} boldsymbol{H}_{3}, ddot{boldsymbol{N}}left(boldsymbol{C}_{2} boldsymbol{H}_{5}right)_{3} ) ( mathbf{A} cdot 1>2>3 ) В. ( 1>3>2 ) c. ( 3>2>1 ) D. ( 3>1>2 ) |
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| 57 | Q. 12 Hofmann bromamide degradation reaction is shown by ……. (a) ArNH2 (b) ArCONH2 (c) ArNO2 (d) ArCH NH2 |
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| 58 | Write structures of compounds ( A ) and ( B ) in each of the following reactions: |
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| 59 | The structure given below represents: [ mathrm{CH}_{3}-underbrace{mathrm{CH}_{3}}_{mathrm{CH}_{3}}-mathrm{NH}_{2} ] A. quarternary ammonium Salt B. primary amine. c. secondary amine. D. tertiary amine. |
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| 60 | Which of the following reagent would you choose for the conversion shown below: ( boldsymbol{A} boldsymbol{r} boldsymbol{N}_{2}^{+} boldsymbol{C l}^{-} longrightarrow boldsymbol{A} boldsymbol{r} boldsymbol{F} ) A. only ( H B F_{4} ) в. ( H F ) ( c cdot F_{2} ) D. ( H B F_{4} / )Heat |
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| 61 | The reagent with which the following reaction is best accomplished is: ( mathbf{A} cdot H_{3} P O_{2} ) В. ( H_{3} P O_{3} ) ( mathbf{c} cdot H_{3} P O_{4} ) D. ( N a H S O_{3} ) |
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| 62 | Aniline is soluble in which of the following organic reagents? A. Benzene B. Ether c. Alcohol D. All of above |
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| 63 | The end product ( (Z) ) of the given reaction is: A. a cyanide B. a carboxylic acid c. an amine D. an arene |
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| 64 | Write the IUPAC name of the given compound: |
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| 65 | Whose IUPAC name ends with -amine? A. ( R-O H ) в. ( R-O-R ) c. ( R-N H_{2} ) D. ( R-C O O-R ) E . ( R-C O-R ) |
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| 66 | The IUPAC name of the compound is: [ mathrm{CH}_{3}-mathrm{CH}-mathrm{CH}-mathrm{CH}_{2} mathrm{NH}_{2} ] A. 2,3 -dimethylbutan-4-amine B. 2, 4- dimethylbutan-1-amine c. 2,4 – dimethylbutan-4-amine D. 2,3 – dimethylbutan-1-amine |
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| 67 | amide is strongly Q. 70 Assertion (A) N-ethylbenzene sulphonamide is soluble in alkali Reason (R) Hydrogen attached to nitrogen in sulphonamide is acidic. Ans (Roth 200ortion |
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| 68 | Mendius reaction involves the: A. Reduction of aldehydes to give alcohols B. Reduction of nitriles with sodium and ethanol C. Oxidation of nitriles D. Hydrolysis of cyanides |
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| 69 | Of the following statements: ( (boldsymbol{P}) boldsymbol{C}_{6} boldsymbol{H}_{5} boldsymbol{N}=boldsymbol{C} boldsymbol{H}-boldsymbol{C}_{6} boldsymbol{H}_{5} ) is a Schiff’s base. ( ( Q ) ) A dye is obtained by the reaction of aniline and ( C_{6} H_{5} N^{+} equiv N C l ) ( (R) C_{6} H_{5} C H_{2} N H_{2} ) on treatment with ( left[N a N O_{2}+H C lright] ) gives diazonium salt ( (S) p- ) Toluidine on treatment with ( left[H N O_{2}+H C lright] ) gives diazonium salt A . only ( (P) ) and ( (Q) ) are correct B. only (P) and (R) are correct c. only ( (R) ) and ( (S) ) are correct D. ( (P),(Q) ) and ( (S) ) are correct |
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| 70 | Methyl cyanide on reaction with sodium and ( C_{2} H_{5} O H ) forms: A. ethyl amine B. ethanoic acid c. ethanimine D. none of these |
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| 71 | Question 11. Suggest a route by which the following conversion can be accomplished. NH–CH3 NH |
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| 72 | The amine ‘A’ when treated with nitrous acid gives yellow oily substance. The amine A is : A. triethylamine B. trimethylamine c. aniline D. methylphenylamine |
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| 73 | Acetylation of a secondary amine in alkaline medium yields: A. N, N – dialkylacetamide B. N, N – dialkylamide c. acetyl dialkylamide D. none of these |
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| 74 | Examine the following structures: Which of the following statement is correct: ( (A) C H_{3}-C-O H ) ( (B) C H_{3}-C-N H_{2} ) (A) ( mathrm{CH}_{3}-frac{mathrm{CH}_{3}}{mathrm{C}}-mathrm{OH} ) (B) ( mathbf{C H}_{3}-underbrace{mathbf{C H}_{mathbf{3}}}_{mathbf{C H}_{mathbf{3}}}-mathbf{N H}_{mathbf{2}} ) A. ( A ) is tertiary alcohol while ( B ) is tertiary amine B. ( A ) is primary alcohol while ( B ) is primary amine C. ( A ) is tertiary alcohol while ( B ) is primary amine D. ( A ) is primary alcohol while ( B ) is tertiary amine |
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| 75 | Diphenyl hydrazine is same as: A. azoxybenzene B. azobenzene c. hydrazobenzene D. aniline |
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| 76 | Question 10. Complete the following reaction. ОН ArN, Cl” ОН- |
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| 77 | Identify the products. [ mathrm{NaBH}_{4} quad mathrm{Me}-mathrm{CONH}_{2} quad mathrm{LiAlH}_{4} ] |
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| 78 | Q. 54 A primary amine, RNH, can be reacted with CH3-X to get secondary amine, R-NHCH, but the only disadvantage is that 3° amine and quaternary ammonium salts are also obtained as side products. Can you suggest a method where RNH, forms only 20 amine? KOH/CHCI 3 PNC Hp PdNUCU PNL |
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| 79 | Which of the following statement(s) is/are correct? This question has multiple correct options A. Primary amines show intermolecular hydrogen bonding B. Secondary amines intermolecular hydrogen bonding. C. Tertiary amines show intermolecular hydrogen bonding D. Amines have lower boiling points as compared to those of alcohols and carboxylic acid of comparable molar masses. |
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| 80 | In the reduction of nitriles to prepare primary amine: A. ( L i A l H_{4} ) is used. B. ( N a B H_{4} ) is used. c. ( S n / H C l ) is used. D. none of these |
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| 81 | Which of the following amides will give ethylamine on reaction with sodium hypobromide? A. Butanamide B. Propanamide c. Acetamide D. Benzamide |
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| 82 | Its basic strength is ( 10^{10} ) more than 1 dimethyl amino naphthalene due to: A. resonance B. steric inhibitation of resonance c. ortho effect D. hyperconjugation |
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| 83 | Among ( left(C H_{3}right)_{3} N ) and ( C H_{3} N H_{2}, ) amine with ( _{text {一一一一一一一一 }} ) methyl groups attached has the higher boiling point. |
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| 84 | The IUPAC name of this given compound is : A. pentyl amine B. methyl-n-propyl amine ( c . ) diethyl amine D. Pentan-2-amine |
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| 85 | ( C_{3} H_{9} N ) cannot represent: A ( cdot 1^{0} ) amine B . ( 2^{0} ) amine ( mathbf{c} cdot 3^{0} ) amine D. quaternary salt |
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| 86 | Assertion ( P h N_{2} B r^{ominus} ) on reaction with ( N a O H ) gives benzene diazohydroxide. Reason ( theta ) ( O H ) is a strong nucleophile, attacks the terminal ( mathrm{N} ) atom, and forms a covalent bond. A. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion B. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion c. Assertion is correct but Reason is incorrect D. Both Assertion and Reason are incorrect |
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| 87 | 12. Toluene is nitrated and the resulting product is reduced with tin and hydrochloric acid. The product so obtained is diazotized and then heated with cuprous bromide. The reaction mixture so formed contains: (a) mixture of o- and p-bromotoluenes (b) mixture of o- and p-dibromobenzenes (c) mixture of o- and p-bromoanilines (d) mixture of o- and m-bromotoluenes(AIEEE 2008) |
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| 88 | 0.42 Give the structure of ‘A’ in the following reaction. CH3 A (0) NaNO2 + HCI, 273-278 K (1) H3PO2, H20 NO2 » NH2 |
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| 89 | Question 3. Give the structure of ‘A’ in the following reaction. CH3 TA (i) NaNO2 + HCI, 273-278 K (i) H2PO2, H2O “NO₂ NH2 |
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| 90 | What is ( Z ) in the following reaction sequence? ( C_{6} H_{5} N H_{2} frac{(i) N a N O_{2}+H C l / 27}{(i i) H_{3} P O_{2}+H_{2} O(i i i) C O, H C l ; a n h y} ) ( Z ) A. ( C_{6} H_{5} C O_{2} H ) в. ( C_{6} H_{5} O H ) c. ( C_{6} H_{5} C H O ) D. ( C_{6} H_{6} ) |
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| 91 | Why diazonium salts do not show positive Lassaigne’s test for nitrogen? |
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| 92 | Which of the following bond angles are correct? A. Ammonia : 107 ( ^{circ} ); methylamine : ( 108^{circ} ) B. Ammonia : ( 108^{circ} ); methylamine : 107 ( ^{circ} ) C. Ammonia : 107 ( ^{circ} ); methylamine : ( 110^{circ} ) D. Ammonia : ( 110^{circ} ); methylamine : 105 ( ^{circ} ) |
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| 93 | Complete reduction of benzene- diazonium chloride with ( Z n / H C l ) gives: A. azobenzene B. phenylhydrazine c. hydrazobenzene D. aniline |
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| 94 | Toluene is nitrated and the resulting product is reduced with tin and hydrochloric acid. The product so obtained is diazotized and heated with cuprous bromide. The reaction mixture formed contains: A. Mixture of o- and p- bromoanilines B. Mixture of o- and m- bromotoluenes c. Mixture of o- and p- bromotoluenes D. Mixture of o- and p- dibromobenzenes |
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| 95 | Which of the following are the incorrect orders of basic character? ( A ) B. ( c ) ( D ) |
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| 96 | How would you convert? Aniline to chlorobenzene |
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| 97 | Gabriel phthalimide reaction is used for the preparation of : A. Primary aromatic amines B. Secondary amines c. Primary aliphatic amines D. Tertiary amines |
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| 98 | Compound (D) is: ( mathbf{A} cdot C H_{3}-underset{C H_{3}}{C H}-C_{D H_{3}}-C H_{2} O H ) ( mathbf{B} ) [ C H_{3}-underset{_{C H_{3}}^{mathrm{I}}}{C}-C H_{2} C H_{2} O H ] ( mathbf{c} . C H_{3}-C H-C H_{2}-C H O H ) ( _{C H_{3}} ) |
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| 99 | Q. 65 How will you carry out the following conversions: NH2 NH2 NO2 NO2 Bry |
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| 100 | The reaction of the benzyl chloride with sodium cyanide followed by reduction with hydrogen in the presence of nickel gives: A. ( beta ) -phenyl ethylamine B. N-isobutylaniline c. benzyl amine D. aniline |
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| 101 | Ethylamine is? A. ( C H_{3}-C H_{2}-C H_{3} ) в. ( C H_{3}-underset{O}{|}-O H ) c. ( C H_{3}-O-C_{3} H_{7} ) D. ( C H_{3}-C-C H_{3} ) I O E ( cdot C H_{3}-C H_{2}-N H_{2} ) |
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| 102 | Acetamide is treated separately with following reagents. Which one of these would give methylamine? A ( cdot P C l_{5} ) B. Sodalime c. ( N a O H+B r_{2} ) D. Hot concentrated ( H_{2} S O_{4} ) |
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| 103 | Which of the following is a ( 1^{circ} ) amine? A ( cdotleft(C H_{3}right)_{3} C N H_{2} ) в. ( C_{6} H_{5} N H C H_{3} ) ( mathbf{c} cdot_{C H_{3} N H C H}left(C H_{3}right)_{2} ) D. ( left(C H_{3} C H_{2}right)_{2} N C H_{3} ) |
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| 104 | ( boldsymbol{C H}_{3} ) ( boldsymbol{C H}_{3}-dot{boldsymbol{N}}-boldsymbol{C H}_{3} ) the IUPAC name is: A. Trimethyl amine B. 2-methyl ethanamine c. N,N-Dimethylmethanamine D. Trimethyl ammonia |
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| 105 | When chloroform reacts with ethylamine in presence of alc. ( boldsymbol{K O H} ) the compound formed is: A . ethyl cyanide B. ethyl isocyanide c. formic acid D. phosgene |
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| 106 | Explain the following reactions: (i) Diazotization (ii) Carbylamine reaction |
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| 107 | Write the name of following compounds: ( (mathrm{A}) C_{6} H_{5} N_{2}^{oplus} H S O_{4}^{ominus} ) (B) Ref. image [ langle 0rangle-mathrm{N}=mathrm{N}-sqrt{bigcirc}rangle-mathrm{o} mathrm{H} ] |
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| 108 | Classify the given amines a primary, secondary or tertiary: ( mathrm{c}, mathrm{H}_{2}, mathrm{CHNH}_{2} quad ) (iv ( mathrm{CC}, mathrm{H}_{2}, mathrm{N} ) |
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| 109 | Question 12. Why cannot aromatic primary amines be prepared by Gabriel phthalimide synthesis? Gabriel phthalimide synthesis involves breaking of C-X where, X is halogen) bond and in aromatic halides C-X bond acquires double bond character. |
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| 110 | (СОдоос Question 13. How will you obtain monobromobenzene from aniline? Solar |
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| 111 | Write the IUPAC name of the compound. [ begin{array}{c} boldsymbol{C H}_{3}-boldsymbol{C H}-boldsymbol{C H}_{2}-boldsymbol{C H O} \ boldsymbol{N H}_{2} end{array} ] |
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| 112 | 0.3 Identify the compound Y in the following reaction. NH3 Na NO2+HO! 273-278 K Cu Ch2Y+Nz banded in cold que US mineral |
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| 113 | Q. 48 Under what reaction condition (acidic, basic) the coupling reaction of aryl diazonium chloride with aniline is carried out? |
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| 114 | Which of the following is a secondary amine? A. Dimethylamine B. Aniline c. Isobutylamine D. Secondary butyl amine |
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| 115 | How is ethyl amine prepared from methyl iodide? | 12 |
| 116 | The correct decreasing order of basic strength of the following species is: ( boldsymbol{H}_{2} boldsymbol{O}, boldsymbol{N} boldsymbol{H}_{3}, boldsymbol{O} boldsymbol{H}^{-}, boldsymbol{N} boldsymbol{H}_{2} ) ( mathbf{A} cdot N H_{2}^{-}>O H^{-}>N H_{3}>H_{2} O ) в. ( O H^{-}>N H_{2}^{-}>H_{2} O>N H_{3} ) C. ( N H_{3}>H_{2} O>N H_{2}^{-}>O H^{-} ) D. ( H_{2} O>N H_{3}>O H^{-}>N H_{2}^{-} ) |
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| 117 | In the given replacement reaction, the reaction will be most favourable if ( boldsymbol{M} ) happens to be: ( mathbf{A} cdot K ) в. ( R b ) c. ( L i ) D. Na |
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| 118 | Raschig’s process is employed for the commercial preparation of A. ethyl chloride B. grignard’s reagent c. hydroxylamine D. ethanol |
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| 119 | Q.55 Complete the following reaction. ОН ONTOT 8 515 ArNaci OH- me The |
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| 120 | Questions 24. In what respect do prontosil and salvarsan resemble. Is there any resemblance between azo dye and prontosil? Explain. |
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| 121 | 0.30 Which of the following species are involved in the carbylamine test? (a) R-NC (b) CHCI (c) COCI, (d) NaNO2 + HCI Ane to |
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| 122 | NMe3 HO 98. A A (Major) Major product A is: |
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| 123 | 59. Which of the following is not a chromophore? (a) -NEN- (b) –NO (c) -NO2 (d) -NH, (UP CA |
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| 124 | Reaction at ( 0-5^{0} C ) between aniline, ( N a N O_{2} ) and HCl is known as A. Suphonation of benzene B. Acylation of aniline C . Alkylation of aniline D. Diazotisation |
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| 125 | Reaction for the preparation of ( 1^{0} ) amine is: A. Hinsberg reaction B. Hoffman mustard oil reaction c. Hoffman bromamide reaction D. Liberman nitroso reaction |
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| 126 | Give the IUPAC names of the given amine: ii) ( mathrm{CH}_{3}-mathrm{NH}-mathrm{CH}-mathrm{CH}_{2}-mathrm{CH}-mathrm{CH} ) |
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| 127 | The shape of ( left(C H_{3}right)_{3} N ) is pyramidal because: A. nitrogen forms three ( s p^{3} ) hybridised ( sigma ) bonds with carbon atoms of methyl groups and there is one nonbonding electron pair B. nitrogen forms three ( s p^{2} ) hybridised ( sigma ) bonds with carbon atoms of methyl groups and fourth orbital forms ( pi ) bond C. nitrogen has five valencies which are arranged in pyramidal shape D. the unpaired electron present on nitrogen is delocalised |
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| 128 | Account for the following. ( mathrm{p} K_{a} ) value of 4 -nitrobenzoic acid is lower than that of benzoic acid. |
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| 129 | Question 6. What is the structure and IUPAC name of the compound, allyl amine? |
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| 130 | ven set of reactants, the most appropriate for preparing 0.9 Amongst the given set of reactants, the me 2º amine is. (a) 2 R-Br + NH3 (b) 2 R-Br + NaCN followed by H2 / Pt (C) 1 R-NH, +RCHO followed by H27Pt -Br(2 mol) + potassium phthalimide followed by H,07 heat |
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| 131 | mongst the following, the strongest base in aqueous medium is ……… (a) CH3NH2 (b) NCCH NH2 (c) (CH3)2NH (d) C6H5NHCH; Thinking Process |
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| 132 | Amongst the following, the strongest base in aqueous medium is A ( cdot C H_{3} N H_{2} ) в. ( N C C H_{2} N H_{2} ) c. ( left(C H_{3}right)_{2} N H ) D. ( C_{6} H_{5} N H C H_{3} ) |
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| 133 | Chlorobenzene can be prepared by reacting aniline with: A ( . ) Hydrochloric acid ( (H C l) ) B. Cuprous chloride ( left(C u_{2} C l_{2}right) ) C. Chlorine in the presence of anhydrous aluminium chloric D. Nitrous acid followed by heating with cuprous chloride(c |
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| 134 | 0.18 The com correct increasing order of basic strength for the following compounds NH2 NH2 NH2 NO2 CH3 (a) II < III <1 (b) III < I< II (c) III < ll<1 (d) ll<i < III hatronathifollow |
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| 135 | .. 8 The source of nitrogen in Gabriel synthesis of amines is ………. (a) sodium azide, NaN3 (b) sodium nitrite, NaNO2 (c) potassium cyanide, KCN (d) potassium phthalimide C.H.(CONK* |
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| 136 | g. 39 wny 1s NHą group of aniline acetylated before carrying out nitration! | 12 |
| 137 | What product is formed on heating two molecules of urea? A. Uric Acid B. Biuret c. Nitrogen D. carbon dioxide |
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| 138 | The IUPAC name of dimethyl sec.butylamine is: A. 2-amino-3-methyl butane B. 2(N-methyl amino) butane c. N,N-dimethyl-butan-2-amine D. 2-(N,N-dimethyl amino) propane |
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| 139 | 000 000 000 000 00 |
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| 140 | Primary amine ( left(boldsymbol{R} boldsymbol{N} boldsymbol{H}_{2}right) ) reacts with nitrous acid to give : A ( cdot R N H_{3}^{+} N O_{2} ) в. RОН c. ROR D. None of these |
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| 141 | The correct IUPAC name of the following compound is: ( boldsymbol{C H}_{3}-boldsymbol{C H}_{2}-boldsymbol{C O}-boldsymbol{N H}-boldsymbol{C H}_{3} ) A. ( N ) – ethyl ethanamide B. N – methyl ethanamide c. N – Methyl propanamide D. N – ethyl methanamide |
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| 142 | The compound ( l-(N-text {ethyl}-N- ) methyl ( )- ) propanamine forms non- superimposable mirror images. But this compound does not show optical activity because of the: A. Absence of a chiral N atom B. Presence of chiral N atom c. Presence of lone pair on ( mathrm{N} ) atom D. Rapid flipping of one form into the other |
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| 143 | Which one of the following is ethyl – 4 (dimethyl amino) butanoate? ( A ) B. ( c ) D. |
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| 144 | The best method for preparing primary amines from alkyl halides without changing the number of carbon atoms in the chain is: A. Hofmann bromamide reaction B. Gabriel phthalimide synthesis c. sandmeyer reaction D. Reaction with ( N H_{3} ) |
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| 145 | Which of the following aryl amine undergoes diazotization most readily? ( A ) B. ( c ) ( D ) |
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| 146 | In the reaction sequence: ( boldsymbol{A} frac{boldsymbol{S n C l}_{2} / boldsymbol{H C l}}{longrightarrow} boldsymbol{B} frac{N boldsymbol{a} N boldsymbol{O}_{2} / boldsymbol{H} C l}{boldsymbol{0}^{o}} boldsymbol{C} stackrel{boldsymbol{H}_{2} boldsymbol{O} / boldsymbol{Delta}}{longrightarrow} ) ( boldsymbol{C}_{6} boldsymbol{H}_{5} boldsymbol{O} boldsymbol{H}, boldsymbol{A}, boldsymbol{B}, boldsymbol{C} ) are: A. benzene, nitrobenzene, aniline B. nitrobenzene, aniline, and azo-compound c. nitrobenzene, benzene, aniline D. benzene, amino compound, aniline |
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| 147 | Which statements are correct about the reaction? [ mathbf{R}-|^{*}_{mathbf{M e}}^{mathbf{O}} underbrace{mathbf{D}}_{mathbf{O}} ddot{mathbf{N}} mathbf{H}_{2} frac{mathbf{B r}_{2}+stackrel{Theta}{mathbf{O H}}}{Delta} begin{array}{c} text { Mixture of } \ mathbf{1}^{circ} text { amines } end{array} ] This question has multiple correct options A. A mixture of two amines is formed, which suggests that rearrangement is intramolecular B. If ( R ) is chiral, it migrates with retention of configuration. ( c ) [ left[begin{array}{c} 0 \ R-C \ | \ dot{N} end{array}right] ] A mixture of four different amines is formed, which suggests that a free acyl nitrene (diag) intermediate is formed. D. A mixture of two different amines and a free acyl nitrene intermediate is formed. |
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| 148 | ( sum_{i=1}^{2} ) | 12 |
| 149 | Identify the products. [ mathbf{X}^{mathrm{NaBH}_{4}} text { ме }-text { СОМН }-text { Ме } frac{mathrm{Li} mathrm{AlH}_{4}}{mathbf{}} ] |
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| 150 | Which of the following will be most stable diazonium salt ( boldsymbol{R} boldsymbol{N}_{2}^{+} boldsymbol{X}^{-} ? ) A ( cdot C H_{3} N_{2}^{+} X^{-} ) B . ( C_{6} H_{5} N_{2}^{+} X^{-} ) ( mathrm{c} cdot mathrm{CH}_{3} mathrm{CH}_{2} mathrm{N}_{2}^{+} mathrm{X}^{-} ) D. ( C_{6} H_{5} C H_{2} N_{2}^{+} X^{-} ) |
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| 151 | ( frac{8}{8} ) | 12 |
| 152 | Question 4. What is the role of pyridine in the acylation reaction of amines? |
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| 153 | A dichloroderivative ( (A) ) on treating with ( K C N ) followed by acid hydrolysis and heating gives a monobasic acid ( (B) ) along with liberation of ( C O_{2}(B) ) on heating with liquid ammonia followed by treating with ( B r_{2} / K O H ) gives ( (C) ) which on treating with ( N a N O_{2} ) and ( H C l ) at low temperature followed by oxidation gives a monobasic acid ( (D) ) having molecular mass ( 74 . C ) in the whole process would be: A. ethyl amine B. propyl amine c. tert-butyl amine D. cyclopentyl amine. |
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| 154 | Compound ( (X) ) is: ( A ) B. ( c ) D. |
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| 155 | The correct order of basicity of the following amines is: A ( . I>I I>I I I>I V ) В. ( I>I I I>I I>I V ) c. ( I I I>I I>I>I V ) D. ( I V>I I I>I I>I ) |
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| 156 | The following reaction is known by the name: A. Acetylation reaction B. Schotten-Baumen reaction c. Friedel-craft’s reaction D. Perkin’s reaction |
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| 157 | Carbylamine reaction is given by: A . aliphatic ( 1^{circ} ) amines only B. aromatic ( 1^{circ} ) amines only C. both aliphatic and aromatic primary amines D. all secondary amines and diazonium salts |
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| 158 | Which of the following cannot be prepared by Gabriel phthalimide synthesis? A. Aliphatic primary amines B. Aromatic primary amines c. cyclic primary amines D. None of the above |
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| 159 | Alkyl isocyanides ( left(R N oplus equiv C^{ominus}right) ) are reduced to ( 2^{circ} ) amines ( left(R-N H-C H_{3}right. ) with: ( mathbf{A} cdot L A H ) в. ( N a B H_{4} ) c. ( H I+P ) D. ( H_{2} / P t ) |
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| 160 | The increasing order of basic strength for the following compounds is: (।) ( boldsymbol{C} boldsymbol{H}_{3}-boldsymbol{C} boldsymbol{H}_{2}-boldsymbol{N} boldsymbol{H}_{2} ) (II) ( boldsymbol{C H}_{3}-boldsymbol{N} boldsymbol{H}-boldsymbol{C H}_{3} ) (III) ( boldsymbol{C H}_{3}-boldsymbol{N} boldsymbol{H}-boldsymbol{P h} ) ( (mathrm{IV}) boldsymbol{C} boldsymbol{H}_{3}-boldsymbol{N} boldsymbol{H}-boldsymbol{C} boldsymbol{H} boldsymbol{O} ) A. ( I V<I I II I ) в. ( I I I<I VI I ) c. ( I V<I I II ) D. ( I I<II V ) |
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| 161 | Which of the following method(s) does work for the preparation of secondary amine? A ( cdot R_{3} N frac{(i) B r-C N}{(i i) H_{3} O^{+}} ? ) ( (i i i) Delta ) c. ( R N C frac{N l / H_{2}}{Delta} ? ) D. All of these |
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| 162 | Benzene diazonium chloride on reaction with phenol in weakly basic medium gives: A. diphenyl ether B. p-hydroxy azobenzene c. chlorobenzene D. benzene |
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| 163 | Iso-propyl amine is a: A. primary amine B. secondary amine C . teritary amine D. quaternary amine |
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| 164 | Q. 62 How will you bring out the following conversion? NO2 NO2 BrBr . Br NH2 p-nitroanlline 3,4,5-tribromonitrobenzene |
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| 165 | How primary amine is prepared by Hoffmann bromamide degradation reaction? Write equation. | 12 |
| 166 | 0.35 Which of the following reactions are correct? Н – CI+ 2NH3- NH2 + NH4CI caq Koh, -C alc. KOH (d) ~ NH2 + HNO2 0°C, OH |
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| 167 | How many primary amines can be formulated by ( C_{3} H_{9} N ) and how many ( 1^{circ} ) hydrogen are associated with carbon atoms of each compound? A. Two primary amines [3,6] B. One primary amine [3] c. Three primary amines [3,6,6 D. Two primary amines [5,6 |
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| 168 | The correct order of boiling points of the following isomeric amines is: ( boldsymbol{C}_{mathbf{4}} boldsymbol{H}_{mathbf{9}} boldsymbol{N} boldsymbol{H}_{mathbf{2}} cdotleft(boldsymbol{C}_{mathbf{2}} boldsymbol{H}_{mathbf{5}}right)_{mathbf{2}} boldsymbol{N} boldsymbol{H}, boldsymbol{C}_{mathbf{2}} boldsymbol{H}_{mathbf{5}} boldsymbol{N}left(boldsymbol{C} boldsymbol{H}_{mathbf{3}}right. ) ( mathbf{A} cdot C_{2} H_{5} Nleft(C H_{3}right)_{2}>left(C_{2} H_{5}right)_{2} N H>C_{4} H_{9} N H_{2} ) ( mathbf{B} cdotleft(C_{2} H_{5}right)_{2} N H>C_{2} H_{5} Nleft(C H_{3}right)_{2}>C_{4} H_{9} N H_{2} ) ( mathbf{c} cdot C_{4} H_{9} N H_{2}>left(C_{2} H_{5}right)_{2} N H>C_{2} H_{5} Nleft(C H_{3}right)_{2} ) D. ( left(C_{2} H_{5}right)_{2} N H>C_{4} H_{9} N H_{2}>C_{2} H_{5} Nleft(C H_{3}right)_{2} ) |
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| 169 | OPPO POWO method for preparing primary amines from alkyl halides without changing the number of carbon atoms in the chain is (a) Hofmann bromamide reaction (b) Gabriel phthalimide synthesis (c) Sandmeyer reaction (d) reaction with NH3 |
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| 170 | In the reaction series: ( boldsymbol{C}_{boldsymbol{6}} boldsymbol{H}_{boldsymbol{5}} boldsymbol{C l} frac{boldsymbol{N H}_{boldsymbol{3}}}{boldsymbol{C u _ { 2 } boldsymbol { O } , mathbf { 2 0 0 } ^ { boldsymbol { o } } boldsymbol { C }}} boldsymbol{X} ; boldsymbol{X} frac{boldsymbol{H} boldsymbol{N O}_{2}}{boldsymbol{0}-boldsymbol{5}^{0} boldsymbol{C}} ) ( Z ; X+Z rightarrow A, ) the number of ( sigma ) and ( pi ) bonds in ( A ) are: ( mathbf{A} cdot 25 sigma ) and ( 6 pi ) B . 25 ( sigma ) and ( 7 pi ) c. ( 27 sigma ) and ( 7 pi ) D. ( 27 sigma ) and ( 6 pi ) |
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| 171 | Udiye uye) 0.56 Why is aniline soluble in aqueous HCL? Ans. Aniline is soluble in aqueous HCI due to formation of ionic anilinium chloride. -NH₂ – NH, CÓ HCI (aq) Aniline (colourless, liquid, insoluble in water) Anilinium chloride (soluble in water) walioton S O O N |
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| 172 | The most basic amine among the following is: A . ( p ) – toluidine B. ( o ) – nitroaniline c. ( p ) – nitroaniline D. ( 2,4- ) dinitroaniline |
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| 173 | The correct order of increasing basic nature of the following bases is: A. ( 2<5<1<3<4 ) В. ( 5<2<1<3<4 ) c. ( 2<5<1<4<3 ) D. ( 5<2<1<4<3 ) |
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| 174 | Which of the following is a Sandmeyer reaction? ( mathbf{A} cdot 2 C_{6} H_{5} C l frac{C u_{2} C l_{2} / H C l}{longrightarrow} C_{6} H_{6}+C l_{2} ) ( mathbf{B} cdot C_{6} H_{5} N_{2} C l frac{C u_{2} C l_{2} / H C l}{longrightarrow} C_{6} H_{5} C l+N_{2} ) ( mathbf{c} cdot C_{6} H_{5} O H frac{Z n d u s t}{longrightarrow} C_{6} H_{6}+Z n O ) ( mathbf{D} cdot C_{6} H_{5} N O_{2}+6[H] stackrel{S n / H C l}{longrightarrow} C_{6} H_{5} N H_{2}+2 H_{2} O ) |
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| 175 | The best reagent for converting, 2 phenylpropanamide into 1 phenylethanamine is: A ( cdot operatorname{excess} H_{2} / P t ) в. ( N a O H / B r_{2} ) c. ( N a B H_{4} / ) methanol D. ( L i A l H_{4} / ) ether |
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| 176 | Which of the following statements are correct? This question has multiple correct options A. In gas phase, the basic character of amine is ( 3>2>1 ) Due to the +1effect of (R-), the availability of ( L P e^{-^{prime}} s ) on N increases. B. In aqueous medium, the basic character of amines is ( M e_{2} N H>M e_{3} N>M e N H_{2}>N H_{3} ) C. In aqueous medium, the addition of protons increases crowding and thus strains setup, which being the highest in 3 amine decreases its basic character. D. In aqueous medium, the ammonium ions in solution are stabilised not only by alkyl groups but also by ( mathrm{H}- ) bond donation to the solvent. |
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| 177 | Write IUPAC names of the following compounds and classify them into primary, secondary and tertiary amines. (i) ( left(boldsymbol{C} boldsymbol{H}_{3}right)_{2} boldsymbol{C} boldsymbol{H} boldsymbol{N} boldsymbol{H}_{2} ) ( boldsymbol{C H}_{3}left(boldsymbol{C H}_{2}right)_{2} boldsymbol{N} boldsymbol{H}_{2} ) ( left(text { iii) } C H_{3} N H C Hleft(C H_{3}right)_{2}right. ) ( left(boldsymbol{C} boldsymbol{H}_{3}right)_{3} boldsymbol{C} boldsymbol{N} boldsymbol{H}_{2} ) ( (v) C_{6} H_{5} N H C H_{3} ) ( left(boldsymbol{C} boldsymbol{H}_{3} boldsymbol{C} boldsymbol{H}_{2}right)_{2} boldsymbol{N} boldsymbol{C} boldsymbol{H}_{3} ) ( (v i i) m-B r C_{6} H_{4} N H_{2} ) |
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| 178 | When aniline reacts with excess of alkyl halide, it gives: A. amino compound B. tertiary compound c. azomethane D. quaternary ammonium compound |
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| 179 | Benzenediazonium chloride on treatment with water gives: A. Benzene B. o-chlorophenol c. Anisole D. Pheno |
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| 180 | Indicate the following compound as ( 1^{circ}, 2^{circ} ) and ( 3^{circ} ) ( boldsymbol{E} boldsymbol{t}_{3} boldsymbol{N} ) ( mathbf{A} cdot 1^{circ} ) B. ( 2^{circ} ) ( c cdot 3^{circ} ) D. Non of the above |
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| 181 | (i) Write IUPAC name of ( boldsymbol{C H}_{3} boldsymbol{C H}_{2} boldsymbol{N H}_{2} ) (ii) Arrange the following amines in the order of their increasing basic strength in aqueous solution. ( left(boldsymbol{C} boldsymbol{H}_{3}right)_{3} boldsymbol{N}_{1}left(boldsymbol{C} boldsymbol{H}_{3}right)_{2} boldsymbol{N} boldsymbol{H}_{1} boldsymbol{C} boldsymbol{H}_{3} boldsymbol{N} boldsymbol{H}_{2} ) |
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| 182 | 2 | 12 |
| 183 | IUPAC name of the compound ( left(boldsymbol{C}_{2} boldsymbol{H}_{5}right)_{2} boldsymbol{N} boldsymbol{C} boldsymbol{H}_{3} ) is: A. 2, 2-diethylmethanamine B. ( N, N ) – diethylmethanamine c. ( N ) -ethyl- ( N ) -methylethanamine D. ( N ) -methylbutanamine |
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| 184 | Why can aromatic primary amines not be prepared by Gabriel phthalimide synthesis? | 12 |
| 185 | b loom .52 Write down the IUPAC name of N(CH2) |
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| 186 | What is the order of basicity of the following compounds? ( boldsymbol{C H}_{3} boldsymbol{N} boldsymbol{H}_{2},left(boldsymbol{C H}_{3}right)_{2} boldsymbol{N} boldsymbol{H},left(boldsymbol{C H}_{3}right)_{3} boldsymbol{N} ) (in protic solvent) A ( cdotleft(C H_{3}right)_{2} N H>C H_{3} N H_{2}>left(C H_{3}right)_{3} N ) B . ( left(C H_{3}right)_{2} N H<C H_{3} N H_{2}left(C H_{3}right)_{3}>C H_{3} N H_{2} N ) D. None of these |
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| 187 | The reduction of acetamide gives: A. ( C H_{3} C H_{2} N H_{2} ) в. ( left(C H_{3}right)_{2} C H N H_{2} ) ( mathbf{c} cdotleft(C H_{3}right)_{3} C N H_{2} ) D. ( left(C H_{3} C H_{2}right)_{2} N H ) |
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| 188 | Question 9. A primary amine. RNH, can be reacted with CH3-X to get secondary amine, R-NHCH, but the only disadvantage is that 39 amine and quaternary ammonium salts are also obtained as side products. Can you suggest a method where RNH, forms only 2º amine? |
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| 189 | Which of the following orders is correct regarding the basicity of aliphatic amines? A ( cdot C H_{3} N H_{2}>left(C H_{3}right)_{2} N H>left(C H_{3}right)_{3} N ) B . ( C H_{3} N H_{2}<left(C H_{3}right)_{2} N Hleft(C H_{3}right)_{2} N H<left(C H_{3}right)_{3} N ) D. ( C H_{3} N H_{2}left(C H_{3}right)_{3} N ) |
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| 190 | In order of prepare fluorobenzene from benzene diazonium chloride, which of the folowing reagents is used? A. Fluorine в. ( H F ) c. Hydrofluorosilic acid D. Fluoroboric acid |
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| 191 | Predict the product ( boldsymbol{C H}_{3}-boldsymbol{C H}_{2}-boldsymbol{C N}+boldsymbol{H}_{2} / boldsymbol{N i} rightarrow ? ) A ( cdot C H_{3}-C H_{2}-C H_{2}-N H_{2} ) в. ( C H_{3}-C H_{2}-N H_{2} ) ( c . ) both a and ( b ) D. none of these |
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| 192 | Which of the following is a secondary amine? A. Aniline B. Diphenyl amine c. sec. butyl amine D. Tert. butyl amine |
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| 193 | The correct IUPAC name for ( boldsymbol{C H}_{2}= ) ( boldsymbol{C H C H}_{2} boldsymbol{N H C H}_{3} ) is: A. allylmethylamine B. 2-amino-4-pentene c. 4 -aminopent- – ene D. N-methylprop-2-en-1-amine. |
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| 194 | The strongest base among the following is: A. ( C_{6} H_{5} N H_{2} ) B . ( p-N H_{2} C_{6} H_{4} N H_{2} ) ( mathrm{c} cdot m-N O_{2} C_{6} H_{4} N H_{2} ) D. ( C_{6} H_{5} C H_{2} N H_{2} ) |
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| 195 | Q. 29 Reduction of nitrobenzene by which of the following reagent gives aniline? (a) Sn/HCI (b) Fe/HCI (c) H2 – Pd (d) Sn/NH,OH |
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| 196 | IUPAC name of, ( boldsymbol{H}_{mathbf{2}} boldsymbol{N}-boldsymbol{C} boldsymbol{H}_{mathbf{2}}-boldsymbol{C} boldsymbol{H}_{2}- ) ( boldsymbol{C H}_{3} ) is: A. propan-1-amine B. propanamine-1,2 c. dipropane-1,2-amine D. diamino-1, 2-propane |
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| 197 | Q. 1 Which of the following is a 3º amine? (a) 1-methylcyctohexylamine (b) Triethylamine (c) tert-butylamine (d) N-methylaniline |
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| 198 | Structure containing an amine group is ( mathbf{A} cdot C H_{3}-C H_{2}-C H_{3} ) в. ( C H_{3}-underset{O}{|}-O H ) c. ( C H_{3}-O-C_{3} H_{7} ) E . ( C H_{3}-C H_{2}-N H_{2} ) |
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| 199 | Which product can not be formed in given reaction? ( A ) B. ( c ) ( D ) |
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| 200 | What are amines? | 12 |
| 201 | Give the diazotisation reaction of aniline. Also give the chemical reaction involved in the preparation of red azo dye and light yellow azo dye. |
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| 202 | Write the reaction for the conversion of 1-hexanol ( rightarrow 1 ) – heptanamine |
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| 203 | Above ( (boldsymbol{C}-boldsymbol{N}) ) coupling reaction take place at: A . low ( p H ) B. nearly nutral ( p H ) ( c . ) high ( p H ) D. any ( p H ) |
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| 204 | Question 5. Complete the following acid-base reactions and name the products : (1) CH3CH,CH NH, + HCI → (ii) (CH3)3N + HCI — |
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| 205 | Give plausible explanation for each of the following: i. Why are amines less acidic than alcohols of comparable molecular masses? ii. Why do priomary amines have higher boiling points than tertiary amines? iii. Why are aliphatic amines stronger bases than aromatic amines? |
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| 206 | Which of the following is more basic than aniline? A. Diphenylamine B. Triphenylamine c. p-nitroaniline D. Benzylamine |
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| 207 | • 18 The most reactive amine towards dilute hydrochloric acid is ………. CH3 (a) CH3-NH2 CNH-CH3 (b) CH3 NH2 CH3 (c) CH3 CNH-CH, H. |
12 |
| 208 | Match the column. | 12 |
| 209 | Give a simple chemical test to distinguish between Aniline and ( mathrm{N}, mathrm{N} ) dimethylaniline | 12 |
| 210 | Question 2. Give one chemical test to distinguish between the follow pairs of compounds. (i) Methylamine and dimethylamine (ii) Secondary and tertiary amines (iii) Ethylamine and aniline (iv) Aniline and benzylamine (v) Aniline and N-methylaniline. (a) Write the structures of amines and classify them into 10. 20.3 benz amine or aromatic amine. (b) Only 1º amines (all types) give carbylamine reaction. 1º and 2 aliphatic amines give Libermann’s nitrso reaction. (c) Aromatic amines give dye test, i.e., diazotization followed by coupling |
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| 211 | Acetamide is treated with the following reagents separately. Which one of these would yield methylamine? A. ( N a O H-B r_{2} ) B. Sodalime c. Hot conc. ( mathrm{H}_{2} mathrm{SO}_{4} ) D. ( P C l ) |
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| 212 | Which of the following is a secondary amine? A. ( H_{2} N-N H_{2} ) в. ( C H_{3}-N H_{2} ) c. ( left(C H_{3}right)_{2} N C_{6} H_{5} ) D. ( C_{6} H_{5}-N H-C H_{3} ) |
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| 213 | Question 15. Predict the reagent or the product in the following reaction sequence, CH3 CH3 CH3 (CH,CO), Pyridine HNO3 H2SO4 2 NO2 NH2 NHCOCH, CH3 CH, NaNOZ/HCI NO2 “NO₂ NH2 |
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| 214 | Select the correct statements regarding the final product ( (Y) ) This question has multiple correct options A. It can be identified with neutral ( F e C l_{3} ) solution B. On treatment with Zn-dust it yields a product having degree of unsaturation ( =4 ) C. It undergoes coupling reaction with benzene diazonium chloride at low temperature ( left(0-5^{circ} mathrm{C}right) ) in slightly basic medium D. It liberates ( H_{2} ) gas with Na |
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| 215 | Which of the following compounds is an imine? ( A ) ( B ) ( c ) D. |
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| 216 | Q. 45 Why does acylation of -NH, group of aniline reduces its activating effect? ito nativits due to resonance of lone pair of |
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| 217 | 0. 36 Under which of the following reaction condi ich of the following reaction conditions, aniline gives p-nitro derivative as the major product? ta) Acetyl chloride/pyridine followed by reaction with conc. H2SO4 + conc. HNO3 (b) Acetic anhydride/pyridine followed by conc. H.SO4 + conc. HNO3 (c) Dil. HCl followed by reaction with conc. H.SO4 + conc. HNO3 (d) Reaction with conc. HNO3 + conc. H2SO4 ne to 3 |
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| 218 | Q.50 Arrange the following compounds in increasing order of dipole moment. CH3CH2CH3, CHCH,NH, CH2CH2OH |
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| 219 | Q. 25 The correct decreasing order of basic strength of the following species is …..….. . H20, NH3, OH-, NH, (a) NH; > OH” >NH, >H,0 (b) OH > NH7 > H2O > NH3 (c) NH> H,O > NH; > OH (d) H,O > NH3 > OH > NHZ |
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| 220 | Which compound is different from the others? A. Methyl ethyl ketone B. Pentan-2-one c. 2-Pentanone D. Methyl propyl ketone |
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| 221 | g. 20 ine reaction ArN2 CL (a) Sandmeyer reaction (c) Claisen reaction une → ArCl + N, + CuCl is named as ……… (b) Gattermann reaction (d) Carbylamine reaction |
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| 222 | Q. 76 A colourless substance ‘A’ (C2H,N) is sparingly soluble in water and gives a water soluble compound ‘B’ on treating with mineral acid. On reacting with CHCl, and alcoholic potash ‘A’ produces an obnoxious smell due to the formation of compound ‘C. Reaction of ‘A’ with benzenesulphonyl chloride gives compound ‘D’ which is soluble in alkali. With NaNO, and HCI, A’ forms compound ‘E’ which reacts with phenol in alkaline medium to give an orange dye ‘F. Identify compounds ‘A’ to ‘F. |
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| 223 | ( boldsymbol{o}-boldsymbol{B r}-boldsymbol{C}_{6} boldsymbol{H}_{4}-boldsymbol{N} boldsymbol{H}_{2} ) is : A . aliphatic ( 1^{0} ) – amine B. aromatic ( 1^{0} ) – amine c. aliphatic ( 2^{0} ) – amine D. aromatic ( 2^{0} ) – amine |
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| 224 | toppr Q Type your question. 4 B. ( c ) ( D ) |
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| 225 | Write the reactions of (i) aromatic and (ii) aliphatic primary amines with nitrous acid. |
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| 226 | Write the structure of ( n ) methylethanmine. |
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| 227 | The correct order of basic strength of the compounds? ( mathbf{A} cdot I>I I>I I I ) В . ( I I>I>I I I ) c. ( I I I>I I>I ) D. ( I I>I I I>I ) |
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| 228 | Which of the following arylamines will not form a diazonium salt on reaction with sodium nitrite in hydrochloric acid? This question has multiple correct options A. m-Ethylaniline B. p-Aminoacetophenone c. 4 -chloro-2-nitroaniline D. N-Ethyl-2-methylaniline |
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| 229 | In pyrrole The electron density is maximum on |
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| 230 | the following reaction? ( A ) ( B ) ( c ) ( D ) |
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| 231 | What is the name for red azo dye? A. p-hydroxy azo benzene B. ( beta ) – nathyl azo benzene C . p-amino azo benzene D. p- ( mathrm{N}, mathrm{N} ) dimethyl amino azo benzene |
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| 232 | What is the order of basicity of the following compounds in aprotic solvent? ( boldsymbol{C H}_{3} boldsymbol{N} boldsymbol{H}_{2},left(boldsymbol{C H}_{3}right)_{2} boldsymbol{N} boldsymbol{H},left(boldsymbol{C H}_{3}right)_{3} boldsymbol{N} ) A ( cdotleft(C H_{3}right)_{3} N>left(C H_{3}right)_{2} N H>C H_{3} N H_{2} ) B . ( left(C H_{3}right)_{3} N<left(C H_{3}right)_{2} N HC H_{3} N H_{2}>left(C H_{3}right)_{2} N H ) D. None of these |
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| 233 | In the chemical reactions, the compounds ( A ) and ( B ) respectively are: A. nitrobenzene and fluorobenzene B. phenol andbenzene c. benzene diazonium chloride and fluorobenzene D. nitrobenzene and chlorobenzene |
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| 234 | Identify ( A ) and ( B ) the following reactions. ( boldsymbol{C}_{6} boldsymbol{H}_{5} boldsymbol{N}_{2} boldsymbol{C l} frac{boldsymbol{H O H}}{Delta} boldsymbol{A} stackrel{boldsymbol{B r}_{2}}{boldsymbol{B}} boldsymbol{B} ) | 12 |
| 235 | 0 0 0 0 |
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| 236 | Question 1. What is the role of HNO3 in the nitrating mixture used for nitration of benzene? TIDO |
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| 237 | Question 8. A compound Z with molecular formula CzH,N reacts will CH SO,Cl to give a solid, insoluble in alkali. Identify Z. |
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| 238 | Which of the following is secondary amine? A. ( C H_{3}-N H_{2} ) в. [ C-N_{L}^{C}^{ominus}-C ] c. ( C H_{3}-N H C H_{3} ) D. ( C H_{3}-Nleft(C H_{3}right)_{2} ) |
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| 239 | 11 İ Compound (C) [ Isomer of (A)] ( mathbf{A} ) ( B ) ( mathbf{C} ) ( D ) |
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| 240 | Which of the following forms unstable diazonium ion when treated with ( N a N O_{2} ) in aqueous ( H C l ? ) A. p-nitrotoluene B. ethylamine c. N,N-dimethyl aniline D. All of the above |
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| 241 | 8 8 8 |
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| 242 | Q. 2 The correct IUPAC name for CH2 = CHCH NHCH3 15 (a) allyl methylamine (b) 2-amino-4-pentene (c) 4-aminopent-1ene (d) N-methylprop-2-en-1-amine |
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| 243 | ( boldsymbol{R}-boldsymbol{C O O H} frac{N D_{3}}{Delta}(boldsymbol{A}) frac{B r_{2}, boldsymbol{K} boldsymbol{O} boldsymbol{H}}{Delta} ) ( (B) stackrel{N a N O_{2}+H C l}{longrightarrow}(C) ) What is ( A, B ) and ( C ? ) A ( cdot(A) R C O N D_{2} ;(B) R N H_{2} ;(C) ) ROH B . ( (A) R C O N D_{2} ;(B) R N D_{2} ;(C) R O D ) c. ( (A) R C O N H D ;(B) R N H D ;(C) ) ROH D. None of these |
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| 244 | Question 9. Convert: () 3-methyl aniline into 3-nitrotoluene. (ii) aniline into 1,3,5-tribromobenzene. The given conversions involve the following steps. O Diazotization followed by reaction with HBF, and nitration. (D) Bromination, diazotization and reduction (by H2PO2). Sala |
12 |
| 245 | Match the four starting materials (P, Q, R, S) given in List I with the corresponding reaction schemes (I, II, III, IV) provided in List II and select the correct answer using the code given below the lists. A. P-1, Q- 4, R- 2, S- 3 B. P- 3, Q-1,R- 4, S-2 c. ( P-3, Q-4, R-2, S-1 ) D. P- ( 4,0-1, R-3, S-2 ) |
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| 246 | Write the IUPAC name of the following amine. ( boldsymbol{H}_{2} boldsymbol{N}-left(boldsymbol{C} boldsymbol{H}_{2}right)_{6}-boldsymbol{N} boldsymbol{H}_{2} ) |
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| 247 | Amongst the following the strongest base is: A. benzylamine B. aniline c. m-nitroaniline D. p-nitroaniline |
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| 248 | Compare boiling point of isomeric alkyl amines. A ( cdot 1^{circ}>2^{circ}>3^{circ} ) B . ( 1^{circ}>2^{circ}<3^{circ} ) c. ( 1^{circ}<2^{circ}<3^{circ} ) D. ( 1^{circ}3^{circ} ) |
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| 249 | Aniline when treated with ( N a N O_{2} ) and ( H C l ) at ( 0-5^{0} C ) gives as a product. A. chloroaniline B. benzene diazonium chloride c. chlorobenzene D. dichlorobenzene |
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| 250 | When diazonium salt solution is treated with ( K I, ) it forms: A. bromobenzene B. acid amide c. phenol D. iodobenzene |
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| 251 | Q. 19 Acid anhydrides on reaction with primary amines give .. (a) amide (b) imide (c) secondary amine (d) imine |
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| 252 | Diazotization of ( n-B u-N H_{2} ) with ( N a N O_{2} / H C l ) gives isomeric butene. ( A cdot 2 ) B. 3 ( c cdot 4 ) D. |
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| 253 | Which reaction shows that amine is base? |
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| 254 | The first organic compound synthesized in the laboratory from an inorganic compound is: A. ( N H_{4} N C O ) в. ( N H_{2}-C O-N H_{2} ) с. ( C H_{3} ) СООН D. ( C H_{4} ) |
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| 255 | The correct increasing order of basic strength for the following compounds is: ( (mathbf{I}) ) (II) ( (mathbf{I I I}) ) ( mathbf{A} cdot|<| 1<1 ) B. ( |I|<|<| ) C. ( |I<|<1 ) D. ( |<I<| 1 ) |
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| 256 | Select the basic strength order of following molecules. A. ( I I I>I I>I ) B. ( I I>I I I>I ) ( c . I>I I I>I I ) D. ( I I I>I>I I ) |
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| 257 | Which of the following shows the correct order of decreasing basicity in aqueous medium: ( mathbf{A} cdotleft(C H_{3}right)_{3} N>left(C H_{3}right)_{2} N H>C H_{3} N H_{2}>N H_{3} ) в. ( left(C H_{3}right)_{2} N H>left(C H_{3}right)_{3} N>C H_{3} N H_{2}>N H_{3} ) C ( cdotleft(C H_{3}right)_{2} N H>C H_{3} N H_{2}>left(C H_{3}right)_{3} N>N H_{3} ) D. ( left(C H_{3}right)_{2} N H>C H_{3} N H_{2}>N H_{3}>left(C H_{3}right)_{3} N ) |
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| 258 | The following amine is: A. strongly acidic B. weakly acidic c. strongly basic D. weakly basiç |
12 |
| 259 | Write about Gabriel phthalimide synthesis? | 12 |
| 260 | Q. 23 Which of the following compounds is the weakest Bronsted base? ΝΗ, NH он OH |
12 |
| 261 | Q. 77 Predict the reagent or the product in the following reaction sequence. CH CH3 CH3 (CH.CO2)20 pyridine HNO, H.SO 3 NO2 NHCOCHE NH2 Sl CH₃ CH3 NANO HCI NH2 |
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| 262 | The molecule which does not exhibit strong hydrogen bonding is: A. Methyl amine B. Diethyl ether c. Acetic acid D. Glucose |
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| 263 | The major product of the reaction is: ( A ) B. ( c ) ( D ) |
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| 264 | ( frac{-}{sigma} ) of 0 0 |
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| 265 | In coupling reactions, diazonium ion acts as: A. nucleophile B. electrophile c. solvent D. none of the above |
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| 266 | Factors responsible for base strength comparison of amines in aqueous solution? A. Availability of Ione pair on nitrogen B. Lone pair donating power of nitrogen c. Stability of conjugate acid formed by solvation through H-bonding. D. All of the above |
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| 267 | ( a ) ( a ) ( a ) 0 |
12 |
| 268 | toppr ( E ) Q Type your question ( operatorname{cooc}_{2} mathbf{H}_{5} ) ( A ) B. ( c ) ( D ) |
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| 269 | What makes diazonium ion one of the best leaving group of organic chemistry? A. Half filled electronic configuration of nitrogen atom B. High electronegativity of nitrogen atom c. very high stability of dinitrogen molecule in the atmosphere D. Weaker ( C-N ) bond |
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| 270 | Which statements are correct? This question has multiple correct options A. Phenol and aniline give coupling reaction with diazonium salt. B. Phenol couples with diazonium salt in mild basic conditions ( (p H=8-10) ) C. Aniline couples with diazonium salt in mild acidic condition ( (p H=4-6) ) D. Both phenol and aniline couple with diazonium salt in neutral condition ( (p H=7) ) |
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| 271 | What is the decreasing order of relative basic strengths of following species? ( A cdot |>|V>|>|| mid ) c. ( ||>| V>|>| mid ) |
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| 272 | Best method of form aromatic iodide is: ( mathbf{A} cdot A r N_{2}^{+}+H I rightarrow ) B. ( R N H_{2}+I_{2} rightarrow ) ( mathbf{c} cdot A r N_{2}^{+}+K I rightarrow ) D. ( A r N_{2}^{+}+P I_{3} rightarrow ) |
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| 273 | How many of the following are soluble in water? (i) Ethylamine (ii) Aniline |
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| 274 | Acid anhydrides on reaction with primary amines gives: A . amide B. imide c. secondary amine D. imine |
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| 275 | Arrange the following in the increasing order of basicity: ( boldsymbol{C H}_{3} boldsymbol{N} boldsymbol{H}_{2},left(boldsymbol{C H}_{3}right)_{2} boldsymbol{N} boldsymbol{H},left(boldsymbol{C H}_{3}right)_{3} boldsymbol{N} ) |
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| 276 | (a) How do primary, secondary and teritary amines react with nitrous acid? (b) Elucidate the structure of glucose. |
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| 277 | A gaseous carbon compound is soluble in dilute HCI. The solution on treating with ( N a N O_{2} ) gives off nitrogen leaving behind a solution which smells of wood spirit. The carbon compound is : A. ( H C H O ) в. ( C O ) c. ( C_{2} H_{5} N H_{2} ) D. ( C H_{3} N H_{2} ) |
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| 278 | Distinguish between ( C_{6} H_{5} N H_{2} ) and ( boldsymbol{C}_{6} boldsymbol{H}_{5} boldsymbol{N} boldsymbol{H} boldsymbol{C} boldsymbol{H}_{3} ) |
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| 279 | The reagents / conditions K, L and M are respectively: ( mathbf{A} cdot B a(O H)_{2}, K C N ) and ( C H C l_{3} / N a O H ) heat, ( H_{3} O^{+} ) B. ( H_{2} O ) boil, ( C O_{2} / K O H ) and ( A c_{2} O-A c O N a ), heat c. steam ( ; C H C l_{3} / N a O H, ) heat, ( H_{3} O^{+} ) and ( A c_{2} O- ) ( A c O N a, ) heat D. ( C u_{2} C l_{2} / H C l, N a O H / h i g h quad P ) and ( C O_{2} mid N a O H, ) heat E. Blank |
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| 280 | Q. 40 What is the product when CH CH NH, reacts with HNO2? | 12 |
| 281 | The stability of benzene diazonium salts is because of: A . inductive effect B. resonance c. hyperconjugation D. mesomeric effect |
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| 282 | In the following compound, the favourable site/s for protonation is/are: ( A cdot(b),(c) ) and ( (d) ) ( B ). ( (a) ) ( c cdot(a) ) and ( (e) ) D. (a) and (d) |
12 |
| 283 | Q. 58 Identify A and B in the following reaction. KONA HAPO B |
12 |
| 284 | Arrange the following in the increasing order of their basicities. I. ( p- ) Toluidine II. ( N, N- ) Dimethyl – ( p ) – toluidine III. ( p- ) Nitroaniline IV. Aniline A. ||( <|v<1<| ) B. II ( <mid V<1<11 ) c. ( |<|<1<1 V ) |
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| 285 | 0.32 The product of the following reaction is ……… NHCOCHE + Br_CH.COOH — NEHOOCH NHCOCHE NHCOC- NHCOCH B: Br |
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| 286 | Give reason: Aromatic primary amines cannot be prepared by Gabriel’s phthalimide synthesis. |
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| 287 | The conversion of primary aromatic ami nes into diazonium salts is known as A. decarboxylation B. diazotization c. ammonolysis D. none of these |
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| 288 | The total number of lone-pairs of electrons in Melamine is: |
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| 289 | How Aniline is obtained from Nitrobenzene? |
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| 290 | What are the possible products? [ widehat{mathrm{NH}_{2}} stackrel{mathrm{HNO}_{2}}{longrightarrow} ] |
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| 291 | Fluorobenzene ( left(C_{6} H_{5} Fright) ) can be synthesised in the lab: A. by heating phenol with HF and KF B. from aniline by diazotization followed by heating the diazonium salt with ( H B F_{4} ) C. by direct fluorination of benzene with ( F_{2} ) gas D. by reacting bromo benzene with NaF solution |
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| 292 | The replacement of diazonium group by fluorine is known as: A . Gattermann reaction B. Sandmeyer reaction c. Balz-Schiemann reaction D. Etard reaction |
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| 293 | 0.31 The reagents that can be used to convert benzenediazonium chloride to benzene are …….. (a) SnCl2/HCI (b) CH3CH,OH (c) H3PO, (d) LiAIHA |
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| 294 | Amines are classified as primary, secondary and tertiary amine. (a) Represent the structure of secondary and tertiary amine. (b) How will you convert nitrobenzene to aniline? (c) Aniline does not undergo Friedel- Crafts reaction. Why? |
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| 295 | The correct order of basic strength of the following are: ( mathbf{1} ) 2 3 4. A ( .1>2> ) в. ( 4>2>3>1 ) c. ( 3>4>2>1 ) D. ( 3>2>4>1 ) |
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| 296 | The end-product in the reaction sequence would be: Ethyl amine ( frac{H N O_{2}}{longrightarrow} A stackrel{P C l_{5}}{longrightarrow} B stackrel{N H_{3}}{longrightarrow} C ) A. Ethyl cyanide B. Ethyl amine c. Methyl amine D. Acetamide |
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| 297 | ( boldsymbol{C H}_{3} boldsymbol{C H}_{2} boldsymbol{N} boldsymbol{H}_{2} ) is soluble in: This question has multiple correct options A. dilute ( H C l ) B. ( C u S O_{4} ) solution ( mathrm{c} . A g N O_{3} ) D. none of these |
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| 298 | ( boldsymbol{C H}_{3} boldsymbol{C H}_{2} boldsymbol{C l} stackrel{boldsymbol{N a C N}}{longrightarrow} boldsymbol{X} stackrel{boldsymbol{N i} / boldsymbol{H}_{2}}{longrightarrow} ) ( boldsymbol{Y} stackrel{text {aceticanhydride}}{longrightarrow} boldsymbol{Z} ) In the above reaction sequence, ( Z ) is: A. ( C H_{3} C H_{2} C H_{2} N H C O C H_{3} ) B. ( C H_{3} C H_{2} C H_{2} N H_{2} ) c. ( C H_{3} C H_{2} C H_{2} C O N H C H_{3} ) D. ( C H_{3} C H_{2} C H_{2} C O N H C O C H_{3} ) |
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| 299 | Which of the following undergoes diazotization? A. ( C H_{3} N H_{2} ) в. ( C_{6} H_{5} N H_{2} ) c. ( C H_{3} C O N H_{2} ) D. ( _{C H_{3} N}left(C H_{3}right)_{2} ) |
12 |
| 300 | Q. 41 What is the best reagent to convert nitrile to primary amine? | 12 |
| 301 | Which compound does not give positive test in Lassaigne’s test for nitrogen? A. Urea B. Hydrazine c. Azobenzene D. Phenyl hydrazine |
12 |
| 302 | Indicate which nitrogen compound amongst the following would undergo Hofmann reaction (i.e., reaction with ( left.B r_{2}, text { and strong } K O Hright) ) to furnish the primary amine ( left(boldsymbol{R}-boldsymbol{N} boldsymbol{H}_{2}right) ) A. ( R C O N H C H_{3} ) в. ( R C O O N H_{4} ) ( mathbf{c} cdot R C O N H_{2} ) D. ( R-C O-N H O H ) |
12 |
| 303 | Q. 60 Write following conversions (i) Nitrobenzene → Acetanilide (ii) Acetanilide → p-nitroaniline til e follows |
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| 304 | All the following IUPAC names are correct except : A. 1-chloro-1-ethoxypropane B. 1-amino-1-ethoxypropane c. 1-ethoxypropan-2-01 D. 1-ethoxypropan-1-amine |
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| 305 | ( boldsymbol{C}_{6} boldsymbol{H}_{6}+boldsymbol{H} boldsymbol{N} boldsymbol{O}_{3}+boldsymbol{H}_{2} boldsymbol{S} boldsymbol{O}_{4} frac{50^{0}-boldsymbol{6} boldsymbol{0}^{0}}{longrightarrow} ) ( boldsymbol{A} stackrel{boldsymbol{S n}+boldsymbol{H} C l}{longrightarrow} boldsymbol{B} frac{boldsymbol{C H}_{3} boldsymbol{C O C l}}{boldsymbol{N}} boldsymbol{C} ). Then ( boldsymbol{C} ) is: A . aniline B. nitro benzene c. acetanilide D. benzedine aniline |
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| 306 | Which of the following statements about ethylmethylamine is true? This question has multiple correct options A. It is a dialkylamine. B. It is a tertiary amine. C. Its IUPAC name is N-methylaminoethane. D. Its IUPAC name is N-ethylaminomethane. |
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| 307 | Which of the following reactions is used to prepare aryl fluorides from diazonium salts and fluoroboric acid? A. Sandmeyer reaction B. Balz-Schiemann reaction c. Gattermann reaction D. Swarts reaction |
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| 308 | Hofmann bromamide degradation reaction is shown by: A ( . A r N H_{2} ) в. ( A r C O N H_{2} ) c. ( A r N O_{2} ) D. ( A r C H_{2} N H_{2} ) |
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| 309 | Arrange the following in decreasing order of their basic strength: ( boldsymbol{C}_{6} boldsymbol{H}_{5} boldsymbol{N} boldsymbol{H}_{2}, boldsymbol{C}_{2} boldsymbol{H}_{5} boldsymbol{N} boldsymbol{H}_{2},left(boldsymbol{C}_{2} boldsymbol{H}_{5}right)_{2} boldsymbol{N} boldsymbol{H}, boldsymbol{lambda} ) |
12 |
| 310 | Which of the following is the strongest base? A. Aniline B. N-methylaniline c. o-methylaniline D. Benzylamine |
12 |
| 311 | The major product of the reaction is : ( A ) ( B ) ( c ) ( D ) |
12 |
| 312 | ( sigma_{sigma^{prime}}^{sigma_{0}} ) | 12 |
| 313 | Q.51 What is the structure and IUPAC name of the compound, allyl amine! | 12 |
| 314 | Which of the following is ( 3^{0} ) amine? A. 1-methylcyclohexylamine B. Triethylamine c. Tert-butylamine D. N-methyl aniline |
12 |
| 315 | The correct IUPAC name of the given compound is: A. N-dimethyl 1-methyl-1-ethyl propane B. 3-methyl-3(N, N-dimethyl amino) pentane c. N-dimethyl amino-3-methyl pentane D. 3, N, N – trimethyl-3-pentanamine |
12 |
| 316 | The IUPAC name of ( left(boldsymbol{C H}_{3}right)_{2} boldsymbol{N} boldsymbol{C H}left(boldsymbol{C H}_{3}right)_{2} ) is: A. N,N-dimethyl-2-propanamine B. N,N-dimethyl amino isopropane c. N,N-dimethyl amino ethane D. Methyl-N-isopropyl methyl amine |
12 |
| 317 | The correct order of boiling points of the following amines ( boldsymbol{C}_{mathbf{4}} boldsymbol{H}_{mathbf{9}} boldsymbol{N} boldsymbol{H}_{mathbf{2}},left(boldsymbol{C}_{mathbf{2}} boldsymbol{H}_{mathbf{5}}right)_{mathbf{2}} boldsymbol{N} boldsymbol{H}, boldsymbol{C}_{mathbf{2}} boldsymbol{H}_{mathbf{5}} boldsymbol{N}(boldsymbol{C} boldsymbol{I} ) is : ( mathbf{A} cdot c_{2} H_{5} Nleft(C H_{3}right)_{2}>left(C_{2} H_{5}right)_{2} N H>C_{4} H_{9} N H_{2} ) B ( cdotleft(C_{2} H_{5}right)_{2} N H>C_{2} H_{5} Nleft(C H_{3}right)_{2}>C_{4} H_{9} N H_{2} ) ( mathrm{c} cdot_{C_{4} H_{9} N H_{2}>}left(C_{2} H_{5}right)_{2} N H>C_{2} H_{5} Nleft(C H_{3}right)_{2} ) ( mathbf{D} cdotleft(C_{2} H_{5}right)_{2} N H>C_{4} H_{9} N H_{2}>C_{2} H_{5} Nleft(C H_{3}right)_{2} ) |
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| 318 | Sandmeyer reaction is better than Gattermann reaction because: A. sandmeyer reaction uses salt of copper while Gattermann reaction uses copper powder B. only one salt is produced in Sandmeyer reaction while Gattermann reaction produces two salts. C. sandmeyer reaction gives better yield than Gattermann reaction. D. all of the above. |
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| 319 | What is the type of hybridisation of ( N ) atom in amines? ( mathbf{A} cdot s p ) B. ( s p^{2} ) c. ( d s p^{2} ) ( D cdot s p^{3} ) |
12 |
| 320 | Which of the following amine gives diazonium salt on reaction with ( boldsymbol{H} boldsymbol{N} boldsymbol{O}_{2} ? ) A ( cdotleft(C H_{3}right)_{2} N H ) в. ( left(C H_{3}right)_{3} N ) c. ( C_{6} H_{5} N H_{2} ) D. ( C H_{3} N H_{2} ) |
12 |
| 321 | (a) Distinguish between primary, secondary and tertiary amines. (b) Explain the structure of fructose. |
12 |
| 322 | Tertiary butyl amine is a: A ( cdot 1^{circ} ) amine B . ( 2^{circ} ) amine ( mathbf{c} cdot 3^{circ} ) amine D. quaternary salt |
12 |
| 323 | Why does acetylation of ( -N H_{2} ) group of aniline reduce its activity? |
12 |
| 324 | Which of the following statements about primary amines is false? A. Alkyl amines are stronger bases than aryl amines B. Alkyl amines react with nitrous acid to produce alcohols C. Aryl amines react with nitrous acid to produce phenols D. Alkyl amines are stronger bases than ammonia |
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| 325 | A primary amine ( {mathrm{B} ) ), on treatment with a solution of ( A u C l_{3} ) in conc. ( H C l ) yields a compound whose formula would be? ( mathbf{A} cdot(B H)^{+} cdot A u C l_{4}^{-} ) B ( cdotleft(B H_{2}right)^{+} cdot A u C l_{4}^{-2} ) ( mathbf{c} cdot(B H)^{+} cdot H A u C l_{4} ) D. ( B . A u C l_{4} ) |
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| 326 | Arrange the following in their decreasing order of acidity. ( mathbf{1} ) II. III. ( mathbf{I V} . mathrm{NH}_{3} ) A. ( I I I>I V>I>I I ) В . ( I>I I>I I I>I V ) ( mathbf{c} cdot I V>I I I>I I>I ) D. ( I I>I I I>I>I V ) |
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| 327 | How can the conversion of (i) to (ii) be brought about? ( mathbf{A} cdot K B r ) ( mathbf{B} cdot K B r+C H_{3} O N a ) ( mathbf{c} cdot K B r+K O H ) ( mathbf{D} cdot B r_{2}+K O H ) |
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| 328 | Write the IUPAC name of the compound. [ begin{array}{c} boldsymbol{C H}_{3}-boldsymbol{C H}-boldsymbol{C H}_{2}-boldsymbol{C O O H} \ boldsymbol{O H} end{array} ] |
12 |
| 329 | The decreasing order of basicity of the following amines is : A. ( (I I)>(I I I)>(I V)>(I) ) в. ( (I)>(I I I)>(I V)>(I I) ) c. ( (I I I)>(I I)>(I)>(I V) ) D. ( (I I I)>(I)>(I I)>(I V) ) |
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| 330 | Reduction of ( C H_{3} C H_{2} N C ) with hydrogen in presence of ( boldsymbol{N} boldsymbol{i} ) or ( boldsymbol{P} boldsymbol{t} ) as catalyst gives: A ( cdot C H_{3} C H_{2} N H_{2} ) B. ( C H_{3} C H_{2} N H C H_{3} ) c. ( C H_{3} C H_{2} N H C H_{2} C H_{3} ) D. ( left(C H_{3}right)_{3} N ) |
12 |
| 331 | Column I Column II | 12 |
| 332 | [ boldsymbol{C H}_{3}-boldsymbol{N H}_{2} quad boldsymbol{C H}_{3}-boldsymbol{N H}-boldsymbol{C H}_{3} ] ( boldsymbol{C H}_{3}-boldsymbol{N}-boldsymbol{C H}_{3} ) ( boldsymbol{C H}_{3} ) Compare boiling points of the given compounds: |
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| 333 | Predict the product (T) for the following reaction sequence. ( boldsymbol{C}_{6} boldsymbol{H}_{5}-boldsymbol{C H}=boldsymbol{O} stackrel{boldsymbol{K C N} / boldsymbol{O H}^{-}}{longrightarrow} ) ( boldsymbol{R} frac{boldsymbol{C r} boldsymbol{O}_{2} / boldsymbol{H}^{oplus}}{longrightarrow} boldsymbol{S} frac{(i) operatorname{conc} K boldsymbol{O} boldsymbol{H}}{(i i) text { Acidification }} boldsymbol{T} ) A. cinnamic acid B. Mandelic acid c. Benzilic acid D. Benzoic acid & Benzyl alcohol |
12 |
| 334 | The major product of the reaction is: ( A ) в. ( c ) D. |
12 |
| 335 | Write down IUPAC name of ( C H_{3}-N H ) | 12 |
| 336 | Which of the following is not correct regarding basic strength? ( mathbf{A} ) B. ( c ) D. |
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| 337 | Which of the following does not give ( mathrm{N} ) ethyl cyclopentyl amine as a major product? (1) (2) |
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| 338 | Identify the compounds from the following which form primary amines under suitable reduction conditions. 1. ( boldsymbol{C}_{2} boldsymbol{H}_{mathbf{5}} boldsymbol{N} boldsymbol{C} ) 2. ( C_{2} H_{6} ) 3. ( C_{2} H_{5} C O N H_{2} ) 4. ( C_{6} H_{5} N O_{2} ) A ( cdot 1,4 ) в. 3,4 c. 1,3,4 D. 2,3,4 |
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| 339 | Amines are almost colourless but develop colour on keeping in the air for a long time, because: A. they are readily oxidised in air to form coloured oxidation product. B. they react with oxygen present in air in very less amount c. they regain color in presence of air D. none of these |
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| 340 | Question 2. Why is NH, group of aniline acetylated before carrying out nitration? Solution In order to check the activation of benzene ring by amino |
12 |
| 341 | 0 0 0 0 0 |
12 |
| 342 | 226. Iodination of benzene is not easily carried out. How can one prepare para-iodobenzoic acid from p-nitrotoluene? (a) (1) Br + FeBry (1) Mg in ether, CO, (1) 3H, and Pt Catalyst (iv) HNO2,0°C ( KI solution (6) 6) NBS in CCI, and Heat (11) Nal in acetone (1) 3H, and Pt catalyst (iv) HNO, ( H₂PO, (c) (NBS in CCI, and Heat (1) HNO2,0°C (iii) CuBr + HBO (iv) KMnO, (v) Kl solution (a) (1) KMnO, and Heat (ii) Sn + HCI (ii) HNO,0°C (iv) Kl solution |
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| 343 | Q.53 A compound Z with molecular formula C HN reacts with CH SO2Cl to give a solid, insoluble in alkali. Identify Z. Thinking Process |
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| 344 | In a set of reactions of propionic acid yielded a compound ( D ) ( boldsymbol{C H}_{3} boldsymbol{C H}_{2} boldsymbol{C O O H} stackrel{S O C l_{2}}{rightarrow} boldsymbol{B} stackrel{N H_{3}}{longrightarrow} boldsymbol{C} frac{boldsymbol{K O H}}{B r_{2}} ) ( D ) The structure of ( D ) would be: A. ( C H_{3} C H_{2} C H_{2} N H_{2} ) B. ( C H_{3} C H_{2} C O N H_{2} ) c. ( C H_{3} C H_{2} N H C H_{3} ) D. ( C H_{3} C H_{2} N H_{2} ) |
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| 345 | N methyl aniline is the stronger base than pyridine. If this is true enter 1 , if false enter 0 . |
12 |
| 346 | Replacement of diazo group by other groups is helpful in preparing those substituted aromatic compounds which cannot be prepared by: A. direct elimination B. replacement reaction c. direct substitution D. addition reaction |
12 |
| 347 | Question 7. Write down the IUPAC name of N(CH3)2 |
12 |
| 348 | Which of the following is a ( 3^{circ} ) amine? A. 1-Methylcyclohexylamine B. Triethylamine c. tert-butylamine D. N-Methylaniline |
12 |
| 349 | Question 12. How will you carry out the following conversions? (i) Toluene- p-toluidine (ii) p-touidine diazonium chloride- p-toluic acid |
12 |
| 350 | Arrange the following in increasing order of pH value A . ॥ < I < II ( c .|<|< ) D. II<IIIS |
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| 351 | ( boldsymbol{C H}_{3}-boldsymbol{C l}+boldsymbol{N} boldsymbol{H}_{3} rightarrow ) ( boldsymbol{C}_{2} boldsymbol{H}_{5}-boldsymbol{C l}+boldsymbol{N} boldsymbol{H}_{3} rightarrow ) Complete the reaction. |
12 |
| 352 | Q. 63 How will you carry out the following conversion: NO2 NH2 |
12 |
| 353 | 2. 74 Assertion (A) Acetanilide is less basic aniline. Reason (R) Acetylation of aniline results in decrease of electron density on nitrogen. |
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| 354 | The structural feature which distinguishes proline from other natural ( alpha ) -amino acids is that: A. it is optically inactive B. it contains aromatic group c. it contains two amino groups D. it is secondary amine |
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| 355 | Point out the correct decreasing order of ( boldsymbol{p} boldsymbol{K}_{boldsymbol{b}} ) values of following amines: ( boldsymbol{C}_{2} boldsymbol{H}_{5} boldsymbol{N} boldsymbol{H}_{2}, boldsymbol{C}_{6} boldsymbol{H}_{5} boldsymbol{N} boldsymbol{H} boldsymbol{C} boldsymbol{H}_{3} ) ( left(C_{2} H_{5}right)_{2} N H ) and ( C_{6} H_{5} N H_{2} ) ( mathbf{A} cdotleft(C_{2} H_{5}right)_{2} N H>C_{2} H_{5} N H_{2}>C_{6} H_{5} N H C H_{3}> ) ( C_{6} H_{5} N H_{2} ) B. ( left(C_{2} H_{5}right)_{2} N H>C_{6} H_{5} N H C H_{3}>C_{6} H_{5} N H_{2}> ) ( C_{2} H_{5} N H_{2} ) c. ( C_{6} H_{5} N H_{2}>C_{6} H_{5} N H C H_{3}>C_{2} H_{5} N H_{2}> ) ( left(C_{2} H_{5}right)_{2} N H ) D. ( C_{2} H_{5} N H_{2}>left(C_{2} H_{5}right)_{2} N H>C_{6} H_{5} N H C H_{3}> ) ( C_{6} H_{5} N H_{2} ) |
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| 356 | Which of the following represents the IUPAC names of the compounds 0 dinitrobenzene, m-dinitrobenzene, and p-dinitrobenzene respectively. A. 1,2 -dinitrobenzene, 1,3 -dinitrobenzene and ( 1,4- ) dinitrobenzene B. 1,2-dinitrobenzene, 1,4-dinitrobenzene and 1,3dinitrobenzene c. 1.3 -dinitrobenzene, 1,2 -dinitrobenzene, and ( 1,4- ) dinitrobenzene D. 1.3-dinitrobenzene, 1,4-dinitrobenzene and 1,2dinitrobenzene |
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| 357 | Which one of the amine have highest boiling point? A. Primary amine B. Secondary amine c. Tertiary amine D. all of these |
12 |
| 358 | Q. 17 Reduction of aromatic nitro compounds using Fe and HCl gives .. (a) aromatic oxime (b) aromatic hydrocarbon (c) aromatic primary amine (d) aromatic amide |
12 |
| 359 | Aromatic amines are generally: A. pleasant in smell. B. toxic in nature. C . low melting solids. D. none of these |
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| 360 | Write the IUPAC name of the given compound and classify it into primary, secondary and teritiary amine ( left(boldsymbol{C} boldsymbol{H}_{3}right)left(boldsymbol{C} boldsymbol{H}_{2}right)_{2} boldsymbol{N} boldsymbol{H}_{2} ) |
12 |
| 361 | ( boldsymbol{C H}_{3} boldsymbol{C H}_{2} boldsymbol{C H}_{2} boldsymbol{C N}+mathbf{2 H}_{2} stackrel{boldsymbol{P d}}{longrightarrow} ) Which of the following compound is formed in the above reaction? ( mathbf{A} cdot C H_{3} C H_{2} C H_{2} C H_{2} N H_{2} ) в. ( C H_{3} C H_{2} C H_{2} N H_{2} ) c. ( C H_{3} C H_{2} C H_{2} C H_{2} C H_{2} N H_{2} ) D. None of the above |
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| 362 | Identify ( Y ) in the following reaction. ( boldsymbol{C}_{2} boldsymbol{H}_{5} boldsymbol{N} boldsymbol{H}_{2} frac{boldsymbol{H} C l}{N a N O_{2}}[boldsymbol{X}] stackrel{boldsymbol{H}_{2} boldsymbol{O}}{longrightarrow} boldsymbol{Y} ) A. ( C_{2} H_{5} N_{2} C l ) в. ( C_{2} H_{5} C l ) с. ( C_{2} H_{5} O H ) D . ( C_{2} H_{6} ) |
12 |
| 363 | Write the structure and IUPAC names of the following compounds. (i) Isobutyl amine. (ii) Ethyl methyl amine. |
12 |
| 364 | Write IUPAC names of the following compound and classify it into primary, secondary, and tertiary amines. ( boldsymbol{C H}_{3} boldsymbol{N H C H}left(boldsymbol{C H}_{3}right)_{2} ) A. N-Methylpropan-2-amine ( left(3^{circ}right) ) B. 3-Methylpropan-2-amine (3^) c. 2-Methylpropan-2-amine ( 2 ( ^{circ} ) D. N-Methylpropan-2-amine (2^) |
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| 365 | ( boldsymbol{C H}_{3} boldsymbol{C H}_{2} boldsymbol{C O N H}_{2} frac{boldsymbol{B r}_{2}}{N a O boldsymbol{H}} boldsymbol{A} ) Aqueous solution of ( boldsymbol{A} ) A. Turns blue litmus to red B. Turns red litmus to blue c. Does not affect the litmus D. Decolourise the litmus |
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| 366 | Amines are the derivatives of: ( A ). acids B. ammonia c. alkanes D. esters |
12 |
| 367 | Which of the following reaction gives secondary amine? A. Reduction of amide B. Reduction of carbylamine c. Reduction of nitro compound D. Hoffmann reduction |
12 |
| 368 | For tghis coupling reaction,which of the following conditions is most suitable? A. strongy acidic B. strongy alkaline c. Slightly alkaine D. neutral |
12 |
| 369 | Convert: Ethanoic acid to methylamine. |
12 |
| 370 | A compound (A) when reacted with ammonia gave (B),(B) when treated with bromine and caustic powder produced (C), (C) on treatment with ( N a N O_{2} ) and ( H C l ) at ( 0^{circ} mathrm{C} ) and then produce ortho-cresol. Compound (A) is: A. o-chlorotoluene B. o-toluic acid c. m-toluic acid D. n-bromotoluene |
12 |
| 371 | Arrange the following in the increasing order of solubility in water: ¡) ( boldsymbol{C}_{boldsymbol{6}} boldsymbol{H}_{boldsymbol{5}} boldsymbol{N} boldsymbol{H}_{boldsymbol{2}} ) ii) ( left(C_{2} H_{5}right)_{2} N H ) iii) ( boldsymbol{C}_{2} boldsymbol{H}_{5} boldsymbol{N} boldsymbol{H}_{2} ) A. is iis iii B. iisisiii ( c . ) iiisisi D. iii <iisi |
12 |
| 372 | Benzyl amine may be alkylated as shown in the following equation: ( boldsymbol{C}_{boldsymbol{6}} boldsymbol{H}_{boldsymbol{5}} boldsymbol{C H}_{mathbf{2}} boldsymbol{N} boldsymbol{H}_{boldsymbol{2}}+boldsymbol{R}-boldsymbol{X} rightarrow ) ( boldsymbol{C}_{boldsymbol{6}} boldsymbol{H}_{boldsymbol{5}} boldsymbol{C} boldsymbol{H}_{2} boldsymbol{N} boldsymbol{H} boldsymbol{R} ) Which of the following alkyl halides is best suited for this reaction through ( boldsymbol{S}_{N} 1 ) mechanism? A ( cdot C H_{3} B r ) в. ( C_{6} H_{5} B r ) c. ( C_{6} H_{5} C H_{2} B r ) ( mathbf{D} cdot C_{2} H_{5} B r ) |
12 |
| 373 | The decreasing order of boiling points of ethyldimethylamine, n- butylamine and diethylamine is ( n- ) Butylamine ( > ) Diethylamine > Ethyldimethylamine. This trend of the boiling point can be explained as: A. boiling point increases with increase in molecular mass B. tertiary amines have highest boiling point due to highest basicity c. intermolecular hydrogen bonding is maximum in primary amines and absent in tertiary amines D. intramolecular hydrogen bonding is present in tertiary amines |
12 |
| 374 | Methylethylpropyl amine is optically inactive because (i) It is not tetrahedral (ii) Its molecule is superimposable on its mirror image (iii) The enantiomers are rapidly interconverted (iv) The nitrogen is ( s p^{2} ) hybridized Which of the above statement(s) is(are) true? A. only (i) B. only (iii) c. (i) and (iii) D. All the four |
12 |
| 375 | Q. 24 Among the following amines, the strongest Bronsted base is ……… H NH2 N. 091500 (b) NH3 |
12 |
| 376 | Which amine yield ( N- ) nitroso amine after treatment with nitrous acid ( left(N a N O_{2}, H C lright) ? ) ( A ) B. ( c ) ( D ) |
12 |
| 377 | Diazo coupling is useful to prepare some: A . pesticides B. dyes c. proteins D. vitamins |
12 |
| 378 | Write the IUPAC name of the following amine. ( boldsymbol{C H}_{3}-boldsymbol{C H}_{2}-boldsymbol{C H}-boldsymbol{N H}_{2}-boldsymbol{C}=mathbf{0}- ) ( boldsymbol{O} boldsymbol{H} ) |
12 |
| 379 | Which or tollowing Is an example of Pinacol-Diazotization? ( mathbf{A} ) ( B ) ( c ) D. |
12 |
| 380 | When ( C_{6} H_{5} N_{2} C l ) is reduced with ( N a_{2} S n O_{2} ) the product is: ( A ) в. c. D. |
12 |
| 381 | Consider the following statements (i) Out of two ( -N H_{2} ) groups in semicarbazide only one is involved in formation of semicarbazones. (ii) Cyclohexane froms cyanohydrin in good yield but ( 2,2,6- ) trimethylcyclohexanone does not. (iii) The ( alpha- )hydrogens in aldehydes and ketones are acidic. A. i and iii B. ii and iii c. i and i i D. i, ii and iii |
12 |
| 382 | Which one of the following is used as a test for aliphatic primary amines? A. Tollen’s test B. Fehling’s lest c. Isocyanide test D. Azo dye test E. Phthalein fusion test |
12 |
| 383 | ( boldsymbol{C H}_{3}-underset{boldsymbol{C} boldsymbol{H}_{3}}{boldsymbol{C} boldsymbol{H}}-stackrel{boldsymbol{P} boldsymbol{h}}{boldsymbol{C} boldsymbol{H}}-boldsymbol{N} boldsymbol{H}_{2} ) The IUPAC name of the compound is : A. 1-Amino-1-phenyl-2-methyl propane B. 2-Methyl-1-phenyl propan-1-amine c. 2-Methyl-1-amino-1-phenyl propane D. 1-lsopropyl-1-phenyl methyl amine |
12 |
| 384 | Which reaction sequence below can convert ( p ) -bromoaniline into ( p ) bromophenol? ( A ) [ mathbf{h}_{2} mathrm{N}-langlesqrt{quad}rangle=mathrm{Br} frac{mathrm{NaNO}_{2}}{mathrm{HCl}, mathrm{H}_{2} mathrm{O}, 0^{circ} mathrm{C}} ] B. ( c ) ( mathrm{H}_{2} mathrm{N} longrightarrowlangleunderbrace{mathrm{o}}_{mathrm{Pyridine}} mathrm{N}_{2} mathrm{O}=frac{mathrm{NaOH}}{mathrm{B}} ) ( D ) |
12 |
| 385 | Methyl orange (an acid -base indicator) can be prepared by following sequence of reactions What would be the structure of methyl |
12 |
| 386 | An aromatic primary amine A with molecular formula ( C_{6} H_{7} N ) undergoes diazotisation to give B. B when the aqueous solution of ( mathrm{B} ) is boiled it gives C. Identify ( A, B ) and ( C ) |
12 |
| 387 | Q. 4 Which of the following is the weakest Bronsted base? NH2 -NH₂ (b) ( NH (c) (d) CH3NH2 |
12 |
| 388 | 2. 16 In the nitration of benzene using a mixture of conc. H2SO4 and conc. HNO3, the species which initiates the reaction is ……… (a) NO2 (b) NOT (c) NO (d) NOZ odea |
12 |
| 389 | Ethylamine dissolves in water due to intermolecular H-bonding. If this is true enter 1 , if false enter 0 . | 12 |
| 390 | Among the following, the strongest base is: A ( cdot C_{6} H_{5} N H_{2} ) в. ( p-N O_{2} C_{6} H_{4} N H_{2} ) ( mathbf{c} cdot m-N O_{2} C_{6} H_{4} N H_{2} ) D. ( C_{6} H_{5} C H_{2} N H_{2} ) |
12 |
| 391 | Aniline when diazotized in cold and then treated with dimethylaniline gives a coloured product. Its structure would be: ( A ) B. ( c ) ( D ) |
12 |
| 392 | Q. 6 Which of the following reagents would not be a good choice for reducing an aryl nitro compound to an amine? (a) Hz(excess) / Pt (b) LiAlH, in ether (c) Fe and HCI (d) Sn and HCI otho |
12 |
| 393 | Ethylamine ( left(C_{2} H_{5} N H_{2}right) ) can be obtained from N-ethylphthalimide on treatment with: A . ( N a B H_{4} ) в. ( C a H_{2} ) ( mathrm{c} cdot mathrm{H}_{2} mathrm{O} ) D. ( N H_{2} N H_{2} ) |
12 |
| 394 | The conversion of primary aromatic amines into diazonium salts is known as: A. diazotisation B. displacement c. acylation D. alkylation |
12 |
| 395 | Which of the following diazonium salt is relatively stable at ( 0-5^{0} C ? ) A. ( left.C H_{3}-N equiv Nright}^{oplus} C l^{-} ) В ( left.cdotleft(C H_{3}right)_{2} C H-N equiv Nright} oplus C l^{-} ) c. ( left.C_{6} H_{5}-N equiv Nright}^{oplus} C l^{-} ) D ( left.cdotleft(C H_{3}right)_{3} C-N equiv Nright}^{oplus} C l ) |
12 |
| 396 | IUPAC name of ( boldsymbol{C}_{mathbf{6}} boldsymbol{H}_{mathbf{5}}-boldsymbol{C} boldsymbol{H}_{mathbf{2}}- ) ( boldsymbol{C H}_{2}-boldsymbol{N H}_{2} ) is : A. 2-phenyl ethanamide B. 2-phenyl ethanamine c. 2-phenyl ethylamine D. 3-phenyl ethanamine |
12 |
| 397 | What is A? | 12 |
| 398 | What would be the product for the following reaction? ( A cdot P h-C ) в. ( P h-N_{2} ) ( c ) ( D ) |
12 |
| 399 | Statement I: Aniline on reaction with ( mathrm{NaNO}_{2} / mathrm{HCl} ) at ( 0^{circ} mathrm{C} ) followed by coupling with ( beta ) -naphthol gives a dark blue coloured precipitate. Statement II: The colour of the compound formed in the reaction of aniline with ( mathrm{NaNO}_{2} / mathrm{HCl} ) at ( 0^{circ} mathrm{C} ) followed by coupling with ( beta ) -naphthol. A. Statement I and statement II are true and statement is the correct explanation of statement B. Statement I and statement II are true and state is not the correct explanation of statement c. statementl is true and the statement ll is false D. statement I is false and the statement II is true |
12 |
| 400 | Secondary amines can be prepared by: A. reduction of nitro compounds B. reduction of amides c. reduction of isonitriles D. reduction of nitriles |
12 |
| 401 | The increasing order of ( p K_{b} ) for the following compounds will be : Refer above image. ( (mathbf{A}) ) ( (mathbf{B}) ) (C) ( mathbf{C H}_{3} mathbf{N H C H}_{3} ) A. ( (A)<(B)<(C) ) B. ( (C)<(A)<(B) ) c. ( (B)<(C)<(A) ) D. ( (B)<(A)<(C) ) |
12 |
| 402 | 8 8 8 6 |
12 |
| 403 | 0.5 Benzylamine may be alkylated as shown in the following equation? | C,H,CHANH, + R x C H CHÁNHR Which of the following alkyl halides is best suited for this reaction through Sn 1 mechanism? (a) CH,Br (b) CH Br (c) CH CH Br (d) CH Br |
12 |
| 404 | ( r, s, t ) are respectively : ( mathbf{A} cdot C O_{2}, H C l, A l C l_{3} ) в. ( operatorname{Me} O H / stackrel{oplus}{H}, H C N / H C l, H_{3} O^{oplus} ) ( mathrm{c} cdot mathrm{CH}_{3} mathrm{Cl} / mathrm{AlCl}_{3}, mathrm{CrO}_{2} mathrm{Cl}_{2}, mathrm{H} ) ( mathrm{D} cdot mathrm{NO}_{2}^{+}, operatorname{Sn} / mathrm{HCl}, mathrm{CuCN} ) |
12 |
| 405 | Question 4. Arrange the following in increasing order of their basic strength : (i) C2H5NH2, COHNH, NH3, CHECH, NH, and (CH3)2NH (ii) C2H5NH), (CAH),NH, (CH2),N, CH-NH, (111) CH3NH2, (CH3)2NH, (CH3)2N, CH3NH2, C,HCH2NH2 (a) Presence of electron donating R group increases the basicity of amines. However, 3º amines in aqueous solution are less basic due to steric hindrance. (b) Aliphatic amines are more basic than aromatic bases because in later lone pair takes part in delocalization, so less available for donation. TTT |
12 |
| 406 | Which of the following would not react with benzene sulphonyl chloride in aq. NaOH ? A. Aniline B. Methylamine c. ( N, N ) -dimethyl aniline D. ( N ) -methyl aniline |
12 |
| 407 | Identify the compound (C). ( mathbf{A} ) ( B ) ( c ) D. None |
12 |
| 408 | Question 7. Write the chemical reaction of aniline with benzoyl chloride and write the name of the product obtained. Os Elimination of HCl and formation of amide (-CO-NH-> linkage. |
12 |
| 409 | Methylamine reacts with ( H N O_{2} ) to form: A ( cdot C H_{3}-O-N=O ) В. ( C H_{3}-O-C H_{3} ) ( mathbf{c} cdot C H_{3} O H ) D. ( C H_{3} C H O ) |
12 |
| 410 | ( frac{frac{sqrt{1}}{12}}{frac{11}{12}} ) | 12 |
| 411 | Hoffmann bromamide reaction is used to convert: A. An organic compound into lower homologue B. An organic compound into higher homologue C. A lower alkane into higher alkene D. None of these |
12 |
| 412 | CHCl3 + Alc. KOH 122. > Major product: ÇIDH NO |
12 |
| 413 | How does the formation of ( 2^{circ} ) and ( 3^{circ} ) amines can be avoided during the preparation of ( 1^{circ} ) amines by alkylation? |
12 |
| 414 | Which of the following is the strongest base? ( A ) в. ( c ) D. |
12 |
| 415 | The IUPAC name of the given structure is: A. N-methyl-N-ethyl ethanamine B. diethyl methanamine c. N-ethyl-N-methyl ethanamine. D. methyl diethyl ethanamine |
12 |
| 416 | Write IUPAC name of the given compound: ( boldsymbol{C}_{6} boldsymbol{H}_{5}-boldsymbol{N} boldsymbol{H}-boldsymbol{C}_{6} boldsymbol{H}_{5} ) |
12 |
| 417 | An organic compound ( (A) ) of molecular formula ( C_{2} H_{5} N O ) reacts with ( B r_{2} / N a O H ) to give compound ( (B) ) of molecular formula ( boldsymbol{C} boldsymbol{H}_{5} boldsymbol{N} .(boldsymbol{A}) ) is reduced by ( L i A l H_{4} ) to give cmpound ( (C) ) of formula ( C_{2} H_{7} N . ) Identify ( (A),(B) ) and ( (C) ) |
12 |
| 418 | How will you bring about the following conversion? 4-nitroaniline to 1,2,3 -tribromobenzene |
12 |
| 419 | Q. 68 Assertion (A) Acylation of amines give rtion (A) Acylation of amines gives a monosubstituted product whereas alkylation of amines gives polysubstituted produ eason (R) Acyl group sterically hinders the approach of further acyl groups. |
12 |
| 420 | Find product in the following reaction is Y. What is Y? A. benzamide B. benzophenone ( c . ) benzoic acid D. benzaldehyde |
12 |
| 421 | Q. 34 Which of the following amines can be prepared by Gabriel synthesis: (a) Isobutyl amine (b) 2-phenylethylamine Id N-methylbenzylamine (d) Aniline Ansta |
12 |
| 422 | Give one chemical test to distinguish between the following pairs of compounds. (i) Methylamine and dimethylamine (ii) Secondary and tertiary amines (iii) Ethylamine and aniline (iv) Aniline and benzylamine (v) Aniline and N-methylaniline. |
12 |
| 423 | Write the reactions involved in the Diazotisation. |
12 |
| 424 | rion (A) Aromatic 1° amines can be prepared by Gabriel phthalimide synthesis. eason (R) Aryl halides undergo nucleophilic substitution with anion formed by phthalimide. |
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| 425 | 0.49 Predict the product of dict the product of reaction of aniline with bromine in non-polar solvent such as CS. |
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| 426 | Q. 33 Arenium ion involved in the bromination of aniline is ………. NH2 NH2 NH2 NH2 H Br H Br T 00 HBr |
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| 427 | Which of the following reactions belong to electrophilic aromatic substitution? (a) Bromination of acetanilide (b) Coupling reaction of aryldiazonium salts (c) Diazotisation of aniline (d) Acylation of aniline |
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| 428 | Question 5. Arrange the following compounds in increasing order of dipole moment. CH3CH,CH3, CH2CH2NH, CH,CHOH |
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| 429 | Which of the following is the ( 3^{circ} ) amine? A ( cdotleft(C H_{3}right)_{3} N ) в. ( left(C H_{3}right)_{2} N H ) c. ( left(C H_{3}right) N H_{2} ) D. ( N H_{3} ) |
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| 430 | Q. 69 Assertion (A) Hofmann’s bromamide reaction is given by primary amine Reason (R) Primary amines one more basic than secondary amines rona |
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| 431 | Account for the following: (i) Primary amines ( left(boldsymbol{R}-boldsymbol{N} boldsymbol{H}_{2}right) ) have higher boiling point than tertiary ( operatorname{amines}left(boldsymbol{R}_{3} boldsymbol{N}right) ) (ii) Aniline does not undergo Friedel- Crafts reaction. (iii) ( left(C H_{3}right)_{2} N H ) is more basic than ( left(C H_{3}right)_{3} N ) in an aqueous solution |
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| 432 | ( sigma_{i}^{i} ) ( Phi_{i}^{i} ) ( Phi_{i-i}^{i-1} ) ( sigma_{i}^{i} ) |
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| 433 | Which of the following statements is not correct? A. Primary amines show intermolecular hydrogen bonding. B. Secondary amines show intermolecular hydrogen bonding C. Tertiary amines show intermolecular hydrogen bonding. D. Amines have lower boiling points as compared to those of alcohols and carboxylic acids of comparable molar masses. |
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| 434 | Which of the following orders is correct regarding basicity of indicated molecules? A. N, N – Dimethyltoluidine > p – toluidine >aniline > p nitroaniline B. Aniline > N, N – dimethyl- p – toluidine > p – toluidine > aniline c. p – Toluidine > N, N – dimethyl – p – toluidine > aniline – nitroaniline D. N, N-Dimethyltoluidine > aniline > p -toluidine > p nitroaniline |
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| 435 | ( frac{sqrt{2}}{8} ) | 12 |
| 436 | Which of the following compound is amphoteric in nature? ( A ) ( mathrm{C}_{2} mathrm{H}_{5}-mathrm{NH}-sqrt{0} ) в. ( C H_{3} ) СООН c. D. ( C H_{3} C O N H_{2} ) |
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| 437 | Aniline is reacted with bromine water and the resulting product is treated with an aqueous solution of sodium nitrite in presence of dilute hydrochloric acid. The compound so formed is reacted with a tetrafluoroborate which is subsequently heated. The final product is: A. ( p ) – bromoaniline в. ( p ) – bromofluorobenzene c. ( 1,3,5- ) tribromobenzene D. ( 2,4,6- ) tribromofluorobenzene |
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| 438 | Which of the following statement is not true? ( mathbf{A} cdot C H_{3} C H_{2} N H_{2} ) is ethanamine B. ( C H_{2} C H_{2} O H ) is an ether C . Cyclopentane and 2-pentene have a molecular formula of ( C_{5} H_{10} ) D. Alkenes an alkynes are unsaturated |
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| 439 | The major product of the reaction between m-dinitrobenzene and ( N H_{4} H S ) is: ( mathbf{A} ) B. ( c ) D. |
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| 440 | Question 1. Classify the following amines as primary, secondary or tertiary: N(CH3)2 NH2 (i) (CH3)2CHNH, (iv) (CH3)2NH Primary amine contains-NHgroup: secondary amine NH group: tertiary amine Ngroup. 2 |
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| 441 | Write the reactions of (i) aromatic and (ii) aliphatic primary amines with nitrous acid. |
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| 442 | The order of basic strength of the given basic nitrogen atoms is : A ( . I I I>I I>I>I V ) В. ( I I I>I>I I>I V ) c. ( I>I I I>I I>I V ) D. ( I I>I I I>I>I V ) |
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| 443 | Primary amines have higher boiling points than tertiary amines If this is true enter 1 , if false enter 0 . | 12 |
| 444 | Compound (C) is Solid ( (mathrm{B}) ) Contains ( 67.8 % ) of ( mathrm{Br} ) ) One mono ( ll ) Nitration nitro compound in. Compound (C) [Isomer of (A)] Compound (D) (Contains ( 76,4 % ) of ( B ) f) [ begin{array}{l} text { One mono } leftarrow text { Nitration } \ text { nitro compound } end{array} ] |
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| 445 | Reaction of acetamide with bromine water and ( K O H ) gives: A. ( C H_{3} ) СООН в. ( C H_{3} C H_{2} N H_{2} ) c. ( C H_{3} C O O N H_{4} ) D. ( C H_{3} N H_{2} ) |
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| 446 | 0- 00 NMe2 NMe2 heat ME; (A), heat Ph E: Ph 98% (syn) (Anti) Ph . Ph (P) (Q) Product (A) and (B) of the above reaction is: (a) A = P, B =P (b) A=Q, B = Q (c) A= P, B = Q (d) A=Q, B =P |
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| 447 | Q. 21 Chloromethane on treatment with excess of ammon on treatment with excess of ammonia yields mainly CH (a) N,N-dimethylmethanamine CHN (b) N-methylmethanamine (CH-NH-CH3) (c) methanamine (CH3NH2) (d) mixture containing all these in equal proportion thomine |
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| 448 | Write the structure of prop( -2-e n- ) ( 1- ) amine |
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| 449 | Identify the products. | 12 |
| 450 | What is the action of the following reagents on aniline? Hot and conc. sulphuric acid. |
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| 451 | Arrange the following in the increasing order of basic strength: ¡)Aniline ii)p-nitroaniline iii)p-toluidine A. is iis iii B. iiciciii D. iii <iisi |
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| 452 | V. 7 In order to prepare a 1° amine from an alkyl halide with simultaneous addition of one CH, group in the carbon chain, the reagent used as source of nitrogen is ………. (a) sodium amide, NaNH (b) sodium azide, NaN; (c) potassium cyanide, KCN (d) potassium phthalimide CHA(CO) NK Ane Gallardor T i multaneou addition of one |
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| 453 | toppr Q Type your question electrons via the nitrogen-nitrogen double bonds. The azo dye obtained on reacting 4 |
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| 454 | 0.26 Which of the following should be most volatile? I. CH2CH2CH2NH2 II. (CH3)2N IV. CH3CH2CH3 III. CH₃ CH CH3CH2NH CH3 (a) II (b) IV (c) 1 (d) III |
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| 455 | Question 1. Write IUPAC names of the following compounds classify them into primary, secondary and tertiary amines. (i) (CH3)2CHNH, (ii) CH (CH2)2NH2 (iii) CH3NHCH(CH3)2 (iv) (CH3)3 CNH2 (v) C6H5NHCHZ (vi) (CH2CH2)2NCH3 (viii) m-BrCH NH, (1) Recall the rules of IUPAC nomenclature and write their name. (2) Glassify them as 10. 2º. 3º (primary, -NH2, secondary “NH, tertiary AN) … A l 2 NH tin CH, CH CH–NH, |
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| 456 | How many primary amines are possible for the formula ( boldsymbol{C}_{4} boldsymbol{H}_{11} boldsymbol{N} ) ? A. one B. Two c. Three D. Four |
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| 457 | Account for the following: (a) Gabriel phthalimide synthesis is not preferred for preparing aromatic primary amines. (b) On reaction with benzene sulphonyl chloride, primary amine yields product soluble in alkali whereas secondary amine yields product insoluble in alkali |
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