JEE Main > Amines

Explore popular questions from Amines for JEE Main. This collection covers Amines previous year JEE Main questions hand picked by popular teachers.


Q 1.    

Correct4

Incorrect-1

Which of the following reagent converts nitrobenzene to aniline?

{tex} \mathrm { Sn } / \mathrm { HCl } {/tex}

B

{tex} \mathrm { Zn } / \mathrm { NH } _ { 4 } \mathrm { OH } {/tex}

C

{tex} \mathrm { Zn } / \mathrm { NaOH } {/tex}

D

{tex} \mathrm{LiAH_4}{/tex}

Explanation

Q 2.    

Correct4

Incorrect-1

Which of the following is most basic?

B

C

D

Explanation

Q 3.    

Correct4

Incorrect-1

Which of the following give isocyanide test?

B

C

D

Explanation

Q 4.    

Correct4

Incorrect-1


The product {tex} \mathrm C {/tex} is

B

C

D

Explanation

Q 5.    

Correct4

Incorrect-1


The product is

A

B

Both ( 1 ) & ( 2 )

D

Explanation



Q 6.    

Correct4

Incorrect-1

Incorrect statement among the following is

A

{tex} - \mathrm { NO } _ { 2 } {/tex} is a deactivating group

B

Causes the substitution to occur at meta-position

C

Nucleophilic ring substitution in nitrobenzene occurs at ortho and para position

Hydrolysis of picryl chloride requires higher temperature than chlorobenzene

Explanation

Q 7.    

Correct4

Incorrect-1

A mixture containing primary, secondary and tertiary amine is treated with diethyl oxalate. Choose the correct statement

A

The distillate of the mixture after treatment mainly contains {tex} 1 ^ { \circ } {/tex} amine

{tex} 3 ^ { \circ } {/tex} amine do not react with diethyl oxalate

C

This is Hinsberg method of separating {tex} 1 ^ { \circ } , 2 ^ { \circ } \& 3 ^ { \circ } {/tex} amines

D

{tex} 3 ^ { \circ } {/tex} amine is removed by filtration

Explanation

Q 8.    

Correct4

Incorrect-1


The compound {tex} \mathrm A {/tex} and {tex}\mathrm B {/tex} are

A

C

D

Explanation

Q 9.    

Correct4

Incorrect-1


(A) and (B) are

A

{tex} \mathrm { CH } _ { 3 } \mathrm { CH } _ { 2 } \mathrm { NHCOCH } _ { 3 } + \mathrm { CH } _ { 3 } \mathrm { CH } _ { 2 } \mathrm { N } \equiv \mathrm { C } {/tex}

B

{tex} \mathrm { CH } _ { 3 } \mathrm { CH } _ { 2 } \mathrm { NO } _ { 2 } + \mathrm { CH } _ { 3 } \mathrm { COOH } {/tex}

{tex} \mathrm { CH } _ { 3 } \mathrm { CH } _ { 2 } \mathrm { NHCOCH } _ { 3 } + \mathrm { CH } _ { 3 } \mathrm { COOH } {/tex}

D

{tex} \mathrm { CH } _ { 3 } \mathrm { CH } _ { 2 } \mathrm { NO } _ { 2 } + \mathrm { CH } _ { 3 } \mathrm { CH } _ { 2 } \mathrm { NHCOCH } _ { 3 } {/tex}

Explanation

Q 10.    

Correct4

Incorrect-1

Choose the false statement

A

{tex} - \mathrm { NH } _ { 2 } {/tex} strongly activating while {tex} - \mathrm { NHCOCH } _ { 3 } {/tex} is weak activating

B

{tex} - \mathrm { NO } _ { 2 } {/tex} is strong deactivating group

{tex} - \mathrm { NHCOCH } _ { 3 } {/tex} and {tex} - \mathrm { NO } _ { 2 } {/tex} are m-directing groups

D

{tex} - \mathrm { N}\overset{\oplus}\mathrm {H } _ { 3 } {/tex} and {tex} - \mathrm { NO } _ { 2 } {/tex} are m-directing groups

Explanation

Q 11.    

Correct4

Incorrect-1

End product of the given reaction sequence is

A

B

D

Explanation

Q 12.    

Correct4

Incorrect-1

Among the following compounds which one will produce an enamine on reaction with cyclohexanone?

A

C

D

Explanation

Q 13.    

Correct4

Incorrect-1

An optically active compound {tex}[ \mathrm { A } ] \mathrm { C } _ { 5 } \mathrm { H } _ { 13 } \mathrm { N }{/tex} reacts with alkaline {tex}\mathrm { CHCl } _ { 3 }{/tex} to give an optically active compound {tex}\mathrm {[ B ]}. {/tex} {tex}\mathrm{[A]}{/tex} also reacts with nitrous acid to give an optically inactive alcohol {tex} [ \mathrm { C } ] \left( \mathrm { C } _ { 5 } \mathrm { H } _ { 11 } \mathrm { OH } \right) {/tex} as the major product. What would be the structure of {tex} [ \mathrm { A } ] ? {/tex}

A

C

D

Explanation

Q 14.    

Correct4

Incorrect-1

Methyl orange (an acid-base indicator) can be prepared by following sequence of reactions

What would be the structure of methyl orange?

A

B

D

Explanation

Q 15.    

Correct4

Incorrect-1

Final product of the following sequence of reactions would be

A

B

C

Explanation

Q 16.    

Correct4

Incorrect-1

Consider the following sequence of reactions

[P] gives coloured precipitate with benzaldehyde. What would be the structure of [P]?

A

B

D

Explanation


{tex}\mathrm{[P]}{/tex}gives coloured precipitate of hydrazone with benzaldehyde of hydrazone.

Q 17.    

Correct4

Incorrect-1

Many important pencillin type antibiotics possess a {tex}\mathrm{\beta}{/tex}-lactam unit. Which of the following represents a {tex}\mathrm{\beta}{/tex}-lactam ring?

A

C

D

Explanation

Q 18.    

Correct4

Incorrect-1

A nitrogenous compound {tex} ( \mathrm { x } ) {/tex} is treated with {tex} \mathrm { HNO } _ { 2 } {/tex}, and the mixture is then made alkaline with dilute {tex} \mathrm {NaOH} {/tex} to give a blue colouration. Among the following, which one can be the compound {tex} ( \mathrm { x } ) {/tex}?

A

{tex} \mathrm { CH } _ { 3 } \mathrm { CH } _ { 2 } \mathrm { NH } _ { 2 } {/tex}

B

{tex} \mathrm { CH } _ { 3 } \mathrm { CH } _ { 2 } \mathrm { NO } _ { 2 } {/tex}

C

{tex} \mathrm { CH } _ { 3 } \mathrm { CH } _ { 2 } \mathrm { ONO } {/tex}

{tex} \left( \mathrm { CH } _ { 3 } \right) _ { 2 } \mathrm { CHNO } _ { 2 } {/tex}

Explanation

Q 19.    

Correct4

Incorrect-1

Consider the following sequence of reaction.

The product [P] would be

A

C

D

Explanation

Q 20.    

Correct4

Incorrect-1

Consider the following sequence of reactions

The compound [A] is

A

{tex} \mathrm { CH } _ { 3 } \mathrm { CH } _ { 2 } \mathrm { NHCH } _ { 3 } {/tex}

{tex} \mathrm { CH } _ { 3 } \mathrm { CH } _ { 2 } \mathrm { CH } _ { 2 } \mathrm { NH } _ { 2 } {/tex}

C

{tex} \left( \mathrm { CH } _ { 3 } \right) _ { 2 } \mathrm { CH } \mathrm { MH } _ { 2 } {/tex}

D

{tex} \left( \mathrm { CH } _ { 3 } \right) _ { 3 } \mathrm { N } {/tex}

Explanation

Q 21.    

Correct4

Incorrect-1

Which of the following will not react with sodium nitrite and {tex}\mathrm{HCl}{/tex}?

A

B

C

Explanation

Q 22.    

Correct4

Incorrect-1


{tex} X {/tex} is

A

B

C

Explanation

Q 23.    

Correct4

Incorrect-1

The order of nucleophilicity among

A

{tex}\mathrm {I>II>IV>III}{/tex}

B

{tex}\mathrm {II>III>I>III}{/tex}

{tex}\mathrm {II>III>IV>I}{/tex}

D

{tex}\mathrm {III>IV>I>II}{/tex}

Explanation

Q 24.    

Correct4

Incorrect-1

Which is more basic?

Benzylamine

B

Aniline

C

Acetamide

D

o-methyl aniline

Explanation

Q 25.    

Correct4

Incorrect-1

The correct increasing order of basic strength for the following compounds is

A

{tex}\mathrm {II

B

{tex}\mathrm {III

C

{tex}\mathrm {III

{tex}\mathrm {II

Explanation