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JEE Advanced > Amines

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

Q 1.

Correct4

Incorrect-1

B

C

D

Q 2.

Correct4

Incorrect-1

Primary, secondary, tertiary amines can be separated by the following except:

A

Fractional distillation

B

Fractional method using diethyl oxalate

C

Hinsberg's method using {tex} \mathrm { C } _ { 6 } \mathrm { H } _ { 5 } \mathrm { SO } _ { 2 } \mathrm { Cl } {/tex}

Selective crystallisation

Explanation

Q 3.

Correct4

Incorrect-1

Stephen's reduction converts nitriles into:

Aldehydes

B

Ketones

C

Amines

D

Carboxylic acids

Explanation

Q 4.

Correct4

Incorrect-1

Which of the following will yield phenylhydrazine hydrochloride?

A

Benzene and hydrazine

B

Hydrazine and {tex}\mathrm { HCl } {/tex}

Benzenediazonium chloride and {tex} \mathrm { SnCl } _ { 2 } / \mathrm { HCl } {/tex}

D

Nitrobenzene and {tex} \mathrm { SnCl } _ { 2 } / \mathrm { HCl } {/tex}

Q 5.

Correct4

Incorrect-1

Among the following, the strongest base is:

A

{tex} \mathrm { C } _ { 6 } \mathrm { H } _ { 5 } \mathrm { NH } _ { 2 } {/tex}

B

{tex} p - \mathrm { NO } _ { 2 } \mathrm { C } _ { 6 } \mathrm { H } _ { 4 } \mathrm { NH } _ { 2 } {/tex}

C

{tex} m - \mathrm { NO } _ { 2 } \cdot \mathrm { C } _ { 6 } \mathrm { H } _ { 4 } \mathrm { NH } _ { 2 } {/tex}

{tex} \mathrm { C } _ { 6 } \mathrm { H } _ { 5 } \mathrm { CH } _ { 2 } \mathrm { NH } _ { 2 } {/tex}

Explanation

Q 6.

Correct4

Incorrect-1

Mendius reaction involves the:

A

Reduction of aldehydes to give alcohols

Reduction of nitriles with sodium and ethanol

C

Oxidation of nitriles

D

Hydrolysis of cyanides

Explanation

Q 7.

Correct4

Incorrect-1

In order to distinguish between {tex} \mathrm { C } _ { 2 } \mathrm { H } _ { 5 } \mathrm { NH } _ { 2 } {/tex} and {tex} \mathrm { C } _ { 6 } \mathrm { H } _ { 5 } \mathrm { NH } _ { 2 } , {/tex} which of the following reagents is useful?

A

Hinsberg reagent

{tex} p {/tex} -Naphthol

C

Benzene diazonium chloride

D

None of the above

Explanation

Q 8.

Correct4

Incorrect-1

Primary and secondary amines are distinguished by:

A

{tex} \mathrm { Br } _ { 2 } / \mathrm { KOH } {/tex}

B

{tex}\mathrm { HClO } {/tex}

{tex} \mathrm { HNO } _ { 2 } {/tex}

D

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

Explanation

Q 9.

Correct4

Incorrect-1

The following reaction constitutes:
{tex} \mathrm { RNH } _ { 2 } + \mathrm { S } = \mathrm { C } = \mathrm { S } \frac { \mathrm { HgCl } _ { 2 } } { \mathrm { H } _ { 2 } \mathrm { S } }\underset{\mathrm{Alkyl\ isothiocynate}}{ \mathrm { R } - \mathrm { N } = \mathrm { C } = \mathrm { S } }+ \mathrm { H } _ { 2 } \mathrm { S } {/tex}

Mustard oil reaction

B

Test for {tex} 3 ^ { \circ } {/tex} amine

C

Test for {tex} 2 ^ { \circ } {/tex} amine

D

Test for {tex}\mathrm{CS_2}{/tex}

Q 10.

Correct4

Incorrect-1

When propane is subjected to the treatment with fuming nitric acid at {tex} 673 \mathrm { K } , {/tex} which of the following will not be formed?

A

1-Nitropropane

B

2-Nitropropane

C

Nitromethane

Nitrohexane

Q 11.

Correct4

Incorrect-1

Nitrogen is likely to be evolved when {tex}\mathrm{NaNO_2}{/tex}, in dilute {tex}\mathrm{HCl}{/tex} is wanted with:

A

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

B

{tex} \left( \mathrm { C } _ { 2 } \mathrm { H } _ { 5 } \right) _ { 3 } \mathrm { N } {/tex}

C

{tex} \mathrm { C } _ { 6 } \mathrm { H } _ { 5 } \mathrm { NH } _ { 2 } {/tex}

{tex} \mathrm { H } _ { 2 } \mathrm { NCH } _ { 2 } \mathrm { CH } _ { 2 } \mathrm { NH } _ { 2 } {/tex}

Explanation

Q 12.

Correct4

Incorrect-1

The electrolytic reduction of nitrobenzene in strongly acidic medium produces:

A

Phenol

{tex} p {/tex} -Aminophenol

C

Hydroazobenzene

D

Azobenzene

Q 13.

Correct4

Incorrect-1

The conjugate base of {tex} \left( \mathrm { CH } _ { 3 } \right) _ { 2 } \mathrm { NH } _ { 2 } ^ { \oplus } {/tex} is:

A

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

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

C

{tex} \left( \mathrm { CH } _ { 3 } \right) _ { 2 } \mathrm { N } ^\ominus {/tex}

D

{tex} \left( \mathrm { CH } _ { 3 } \right) _ { 2 } \mathrm { N }^ \oplus {/tex}

Q 14.

Correct4

Incorrect-1

A compound {tex}( \mathrm { X } ){/tex} has the molecular formula {tex} \mathrm { C } _ { 7 } \mathrm { H } _ { 7 } \mathrm { NO } {/tex}. On treatment with {tex}\mathrm {Br_ 2 } {/tex} and {tex} \mathrm { KOH } , ( \mathrm { X } ) {/tex} gives an amine {tex} ( \mathrm { Y } ) ; ( \mathrm { Y } ) {/tex} gives carbylamine test. {tex}( \mathrm { Y } ) {/tex} upon diazotisation and coupling with phenol gives an azodye {tex}( \mathrm { Z } ) {/tex}. {tex}( \mathrm { X } ){/tex}

{tex} \mathrm { PhCONH } _ { 2 } {/tex}

B

{tex} \mathrm { PhCONHCOCH } _ { 3 } {/tex}

C

{tex} \mathrm { PhNO } _ { 2 } {/tex}

D

{tex} \mathrm { PhCOONH } _ { 4 } {/tex}

Explanation



Q 15.

Correct4

Incorrect-1

Diazo coupling is useful to prepare some:

A

Pesticides

Dyes

C

Proteins

D

Vitamins

Explanation