QBManager

CHXII13:AMINES

324170 $C_{6} H_{5} {NH}_{2} + C_{6} H_{5} CHO \to C_{6} H_{5} N = {CHC}_{6} H_{5}$ involves

1 addition/elimination

2 substitution

3 addition

4 elimination.

CHXII13:AMINES

324171 In which of the following sequence of reaction the end product does not exhibit tautomerism?

1

{CH}_{3} {CH}_{2} {NH}_{2} \overset{NOCl}{⟶} \overset{{AgNO}_{2}}{⟶}

2

{({CH}_{3})}_{2} {CHNH}_{2} \overset{NOCl}{⟶} \overset{{AgNO}_{2}}{⟶}

3

{({CH}_{3})}_{3} {CNH}_{2} \overset{NOCl}{⟶} \overset{{AgNO}_{2}}{⟶}

4

{CH}_{3} CH ({NH}_{2}) C_{2} H_{5} \overset{NOCl}{⟶} \overset{{AgNO}_{2}}{⟶}

Explanation:

In the $3 rd$ reaction sequence the end product is a $3^{\circ}$ nitro compound. ${(C H_{3})}_{3} C N O_{2}$ . It does not have $α$ -hydrogen as such tautomerism is not possible.

CHXII13:AMINES

324172 The reagent required to convert
supporting img
is

1

KOH / {Br}_{2}, {LiAlH}_{4}

2

KOH / {Br}_{2}, {CH}_{3} COCl

3

{HNO}_{2}, {({CH}_{3} {CO}_{2})}_{2} O

4

KOH / {Br}_{2}, {CH}_{3} OH / Na

CHXII13:AMINES

324173 $C_{2} H_{5} Br \overset{AgCN}{\to} A \overset{H_{3} O^{+}}{\to} HCOOH + B$ ;
$B \to_{KOH}^{CHC l_{3}} A \overset{Reduction}{\to} C$
$A, B, C$ respectively in the above sequence are:

1 Ethane amine, methane nitrile and diethyl amine

2 Ethyl isocyanide, ethane amine and secondary amine

3 Ethyl isocyanide, ethyl amine and methyl isocyanate

4 Ethyl isocyanide, ethane amine and ethyl methyl amine

Explanation:

$C_{2} H_{5} Br \overset{AgCN}{\to} \underset{(A)}{C_{2} H_{5} NC} \overset{H_{3} O^{+}}{\to} HCOOH$
$+ \underset{(B)}{C_{2} H_{5} N H_{2}}$
$C_{2} H_{5} N H_{2} \to_{KOH}^{CHC l_{3}} C_{2} H_{5} NC \overset{Reduction}{\to}$
$\underset{(C)}{C_{2} H_{5} - NH - C H_{3}}$

CHXII13:AMINES

324170 $C_{6} H_{5} {NH}_{2} + C_{6} H_{5} CHO \to C_{6} H_{5} N = {CHC}_{6} H_{5}$ involves

1 addition/elimination

2 substitution

3 addition

4 elimination.

CHXII13:AMINES

324171 In which of the following sequence of reaction the end product does not exhibit tautomerism?

1

{CH}_{3} {CH}_{2} {NH}_{2} \overset{NOCl}{⟶} \overset{{AgNO}_{2}}{⟶}

2

{({CH}_{3})}_{2} {CHNH}_{2} \overset{NOCl}{⟶} \overset{{AgNO}_{2}}{⟶}

3

{({CH}_{3})}_{3} {CNH}_{2} \overset{NOCl}{⟶} \overset{{AgNO}_{2}}{⟶}

4

{CH}_{3} CH ({NH}_{2}) C_{2} H_{5} \overset{NOCl}{⟶} \overset{{AgNO}_{2}}{⟶}

Explanation:

In the $3 rd$ reaction sequence the end product is a $3^{\circ}$ nitro compound. ${(C H_{3})}_{3} C N O_{2}$ . It does not have $α$ -hydrogen as such tautomerism is not possible.

CHXII13:AMINES

324172 The reagent required to convert
supporting img
is

1

KOH / {Br}_{2}, {LiAlH}_{4}

2

KOH / {Br}_{2}, {CH}_{3} COCl

3

{HNO}_{2}, {({CH}_{3} {CO}_{2})}_{2} O

4

KOH / {Br}_{2}, {CH}_{3} OH / Na

CHXII13:AMINES

324173 $C_{2} H_{5} Br \overset{AgCN}{\to} A \overset{H_{3} O^{+}}{\to} HCOOH + B$ ;
$B \to_{KOH}^{CHC l_{3}} A \overset{Reduction}{\to} C$
$A, B, C$ respectively in the above sequence are:

1 Ethane amine, methane nitrile and diethyl amine

2 Ethyl isocyanide, ethane amine and secondary amine

3 Ethyl isocyanide, ethyl amine and methyl isocyanate

4 Ethyl isocyanide, ethane amine and ethyl methyl amine

Explanation:

$C_{2} H_{5} Br \overset{AgCN}{\to} \underset{(A)}{C_{2} H_{5} NC} \overset{H_{3} O^{+}}{\to} HCOOH$
$+ \underset{(B)}{C_{2} H_{5} N H_{2}}$
$C_{2} H_{5} N H_{2} \to_{KOH}^{CHC l_{3}} C_{2} H_{5} NC \overset{Reduction}{\to}$
$\underset{(C)}{C_{2} H_{5} - NH - C H_{3}}$

CHXII13:AMINES

324170 $C_{6} H_{5} {NH}_{2} + C_{6} H_{5} CHO \to C_{6} H_{5} N = {CHC}_{6} H_{5}$ involves

1 addition/elimination

2 substitution

3 addition

4 elimination.

CHXII13:AMINES

324171 In which of the following sequence of reaction the end product does not exhibit tautomerism?

1

{CH}_{3} {CH}_{2} {NH}_{2} \overset{NOCl}{⟶} \overset{{AgNO}_{2}}{⟶}

2

{({CH}_{3})}_{2} {CHNH}_{2} \overset{NOCl}{⟶} \overset{{AgNO}_{2}}{⟶}

3

{({CH}_{3})}_{3} {CNH}_{2} \overset{NOCl}{⟶} \overset{{AgNO}_{2}}{⟶}

4

{CH}_{3} CH ({NH}_{2}) C_{2} H_{5} \overset{NOCl}{⟶} \overset{{AgNO}_{2}}{⟶}

Explanation:

In the $3 rd$ reaction sequence the end product is a $3^{\circ}$ nitro compound. ${(C H_{3})}_{3} C N O_{2}$ . It does not have $α$ -hydrogen as such tautomerism is not possible.

CHXII13:AMINES

324172 The reagent required to convert
supporting img
is

1

KOH / {Br}_{2}, {LiAlH}_{4}

2

KOH / {Br}_{2}, {CH}_{3} COCl

3

{HNO}_{2}, {({CH}_{3} {CO}_{2})}_{2} O

4

KOH / {Br}_{2}, {CH}_{3} OH / Na

CHXII13:AMINES

324173 $C_{2} H_{5} Br \overset{AgCN}{\to} A \overset{H_{3} O^{+}}{\to} HCOOH + B$ ;
$B \to_{KOH}^{CHC l_{3}} A \overset{Reduction}{\to} C$
$A, B, C$ respectively in the above sequence are:

1 Ethane amine, methane nitrile and diethyl amine

2 Ethyl isocyanide, ethane amine and secondary amine

3 Ethyl isocyanide, ethyl amine and methyl isocyanate

4 Ethyl isocyanide, ethane amine and ethyl methyl amine

Explanation:

$C_{2} H_{5} Br \overset{AgCN}{\to} \underset{(A)}{C_{2} H_{5} NC} \overset{H_{3} O^{+}}{\to} HCOOH$
$+ \underset{(B)}{C_{2} H_{5} N H_{2}}$
$C_{2} H_{5} N H_{2} \to_{KOH}^{CHC l_{3}} C_{2} H_{5} NC \overset{Reduction}{\to}$
$\underset{(C)}{C_{2} H_{5} - NH - C H_{3}}$

CHXII13:AMINES

324170 $C_{6} H_{5} {NH}_{2} + C_{6} H_{5} CHO \to C_{6} H_{5} N = {CHC}_{6} H_{5}$ involves

1 addition/elimination

2 substitution

3 addition

4 elimination.

CHXII13:AMINES

324171 In which of the following sequence of reaction the end product does not exhibit tautomerism?

1

{CH}_{3} {CH}_{2} {NH}_{2} \overset{NOCl}{⟶} \overset{{AgNO}_{2}}{⟶}

2

{({CH}_{3})}_{2} {CHNH}_{2} \overset{NOCl}{⟶} \overset{{AgNO}_{2}}{⟶}

3

{({CH}_{3})}_{3} {CNH}_{2} \overset{NOCl}{⟶} \overset{{AgNO}_{2}}{⟶}

4

{CH}_{3} CH ({NH}_{2}) C_{2} H_{5} \overset{NOCl}{⟶} \overset{{AgNO}_{2}}{⟶}

Explanation:

In the $3 rd$ reaction sequence the end product is a $3^{\circ}$ nitro compound. ${(C H_{3})}_{3} C N O_{2}$ . It does not have $α$ -hydrogen as such tautomerism is not possible.

CHXII13:AMINES

324172 The reagent required to convert
supporting img
is

1

KOH / {Br}_{2}, {LiAlH}_{4}

2

KOH / {Br}_{2}, {CH}_{3} COCl

3

{HNO}_{2}, {({CH}_{3} {CO}_{2})}_{2} O

4

KOH / {Br}_{2}, {CH}_{3} OH / Na

CHXII13:AMINES

324173 $C_{2} H_{5} Br \overset{AgCN}{\to} A \overset{H_{3} O^{+}}{\to} HCOOH + B$ ;
$B \to_{KOH}^{CHC l_{3}} A \overset{Reduction}{\to} C$
$A, B, C$ respectively in the above sequence are:

1 Ethane amine, methane nitrile and diethyl amine

2 Ethyl isocyanide, ethane amine and secondary amine

3 Ethyl isocyanide, ethyl amine and methyl isocyanate

4 Ethyl isocyanide, ethane amine and ethyl methyl amine

Explanation:

$C_{2} H_{5} Br \overset{AgCN}{\to} \underset{(A)}{C_{2} H_{5} NC} \overset{H_{3} O^{+}}{\to} HCOOH$
$+ \underset{(B)}{C_{2} H_{5} N H_{2}}$
$C_{2} H_{5} N H_{2} \to_{KOH}^{CHC l_{3}} C_{2} H_{5} NC \overset{Reduction}{\to}$
$\underset{(C)}{C_{2} H_{5} - NH - C H_{3}}$

Explanation:

Explanation:

Explanation:

Explanation:

Question Bank Series

Explanation:

Explanation:

Explanation:

Explanation:

Explanation:

Explanation:

Explanation:

Explanation:

Explanation:

Explanation:

Explanation:

Explanation:

Question Bank Series