324119
For carbylamine reaction, we need hot alcoholic \(\mathrm{KOH}\) and
1 any primary amine and chloroform
2 chloroform and silver powder
3 a primary amine and an alkyl halide
4 a monoalkylamine and trichloromethane.
Explanation:
Any primary amine means both aliphatic as well as aromatic but monoalkylamines means only \(1^{\circ}\) aliphatic amines. Therefore, option (1) is correct while (4) is wrong. \(\mathrm{RNH}_{2}+\mathrm{CHCl}_{3}+3 \mathrm{KOH} \longrightarrow \underset{\substack{\text { allkl } \\ \text { isocyanide }}}{\mathrm{RNC}}+3 \mathrm{KCl}+3 \mathrm{H}_{2} \mathrm{O}\)
CHXII13:AMINES
324120
Of the following amines how many can give carbylamine reaction.
1 4
2 2
3 3
4 1
Explanation:
Only \(1^{\circ}\) amines give carbyl amine reaction.
CHXII13:AMINES
324121
Consider the following reagents I. R-NC II. \(\mathrm{CHCl}_{3}\) III. \(\mathrm{COCl}_{2}\) IV. \(\mathrm{NaNO}_{2}+\mathrm{HCl}\) Which of the following species are involved in the carbylamine test for primary amines?
1 I and II
2 I and III
3 I and IV
4 II and III
Explanation:
Aliphatic and aromatic primary amines on heating with chloroform and ethanolic \(\mathrm{KOH}\) form isocyanides or carbylamines which is known as carbylamine test and is used to test only primary amine. \(\begin{aligned}\mathrm{RNH}_{2}+\mathrm{CHCl}_{3}+3 \mathrm{KOH} \stackrel{\text { Heat }}{\longrightarrow} \\\mathrm{RNC}+3 \mathrm{KCl}+3 \mathrm{H}_{2} \mathrm{O}\end{aligned}\)
CHXII13:AMINES
324122
Benzene isonitrile is obtained when benzamine is treated with
324119
For carbylamine reaction, we need hot alcoholic \(\mathrm{KOH}\) and
1 any primary amine and chloroform
2 chloroform and silver powder
3 a primary amine and an alkyl halide
4 a monoalkylamine and trichloromethane.
Explanation:
Any primary amine means both aliphatic as well as aromatic but monoalkylamines means only \(1^{\circ}\) aliphatic amines. Therefore, option (1) is correct while (4) is wrong. \(\mathrm{RNH}_{2}+\mathrm{CHCl}_{3}+3 \mathrm{KOH} \longrightarrow \underset{\substack{\text { allkl } \\ \text { isocyanide }}}{\mathrm{RNC}}+3 \mathrm{KCl}+3 \mathrm{H}_{2} \mathrm{O}\)
CHXII13:AMINES
324120
Of the following amines how many can give carbylamine reaction.
1 4
2 2
3 3
4 1
Explanation:
Only \(1^{\circ}\) amines give carbyl amine reaction.
CHXII13:AMINES
324121
Consider the following reagents I. R-NC II. \(\mathrm{CHCl}_{3}\) III. \(\mathrm{COCl}_{2}\) IV. \(\mathrm{NaNO}_{2}+\mathrm{HCl}\) Which of the following species are involved in the carbylamine test for primary amines?
1 I and II
2 I and III
3 I and IV
4 II and III
Explanation:
Aliphatic and aromatic primary amines on heating with chloroform and ethanolic \(\mathrm{KOH}\) form isocyanides or carbylamines which is known as carbylamine test and is used to test only primary amine. \(\begin{aligned}\mathrm{RNH}_{2}+\mathrm{CHCl}_{3}+3 \mathrm{KOH} \stackrel{\text { Heat }}{\longrightarrow} \\\mathrm{RNC}+3 \mathrm{KCl}+3 \mathrm{H}_{2} \mathrm{O}\end{aligned}\)
CHXII13:AMINES
324122
Benzene isonitrile is obtained when benzamine is treated with
324119
For carbylamine reaction, we need hot alcoholic \(\mathrm{KOH}\) and
1 any primary amine and chloroform
2 chloroform and silver powder
3 a primary amine and an alkyl halide
4 a monoalkylamine and trichloromethane.
Explanation:
Any primary amine means both aliphatic as well as aromatic but monoalkylamines means only \(1^{\circ}\) aliphatic amines. Therefore, option (1) is correct while (4) is wrong. \(\mathrm{RNH}_{2}+\mathrm{CHCl}_{3}+3 \mathrm{KOH} \longrightarrow \underset{\substack{\text { allkl } \\ \text { isocyanide }}}{\mathrm{RNC}}+3 \mathrm{KCl}+3 \mathrm{H}_{2} \mathrm{O}\)
CHXII13:AMINES
324120
Of the following amines how many can give carbylamine reaction.
1 4
2 2
3 3
4 1
Explanation:
Only \(1^{\circ}\) amines give carbyl amine reaction.
CHXII13:AMINES
324121
Consider the following reagents I. R-NC II. \(\mathrm{CHCl}_{3}\) III. \(\mathrm{COCl}_{2}\) IV. \(\mathrm{NaNO}_{2}+\mathrm{HCl}\) Which of the following species are involved in the carbylamine test for primary amines?
1 I and II
2 I and III
3 I and IV
4 II and III
Explanation:
Aliphatic and aromatic primary amines on heating with chloroform and ethanolic \(\mathrm{KOH}\) form isocyanides or carbylamines which is known as carbylamine test and is used to test only primary amine. \(\begin{aligned}\mathrm{RNH}_{2}+\mathrm{CHCl}_{3}+3 \mathrm{KOH} \stackrel{\text { Heat }}{\longrightarrow} \\\mathrm{RNC}+3 \mathrm{KCl}+3 \mathrm{H}_{2} \mathrm{O}\end{aligned}\)
CHXII13:AMINES
324122
Benzene isonitrile is obtained when benzamine is treated with
324119
For carbylamine reaction, we need hot alcoholic \(\mathrm{KOH}\) and
1 any primary amine and chloroform
2 chloroform and silver powder
3 a primary amine and an alkyl halide
4 a monoalkylamine and trichloromethane.
Explanation:
Any primary amine means both aliphatic as well as aromatic but monoalkylamines means only \(1^{\circ}\) aliphatic amines. Therefore, option (1) is correct while (4) is wrong. \(\mathrm{RNH}_{2}+\mathrm{CHCl}_{3}+3 \mathrm{KOH} \longrightarrow \underset{\substack{\text { allkl } \\ \text { isocyanide }}}{\mathrm{RNC}}+3 \mathrm{KCl}+3 \mathrm{H}_{2} \mathrm{O}\)
CHXII13:AMINES
324120
Of the following amines how many can give carbylamine reaction.
1 4
2 2
3 3
4 1
Explanation:
Only \(1^{\circ}\) amines give carbyl amine reaction.
CHXII13:AMINES
324121
Consider the following reagents I. R-NC II. \(\mathrm{CHCl}_{3}\) III. \(\mathrm{COCl}_{2}\) IV. \(\mathrm{NaNO}_{2}+\mathrm{HCl}\) Which of the following species are involved in the carbylamine test for primary amines?
1 I and II
2 I and III
3 I and IV
4 II and III
Explanation:
Aliphatic and aromatic primary amines on heating with chloroform and ethanolic \(\mathrm{KOH}\) form isocyanides or carbylamines which is known as carbylamine test and is used to test only primary amine. \(\begin{aligned}\mathrm{RNH}_{2}+\mathrm{CHCl}_{3}+3 \mathrm{KOH} \stackrel{\text { Heat }}{\longrightarrow} \\\mathrm{RNC}+3 \mathrm{KCl}+3 \mathrm{H}_{2} \mathrm{O}\end{aligned}\)
CHXII13:AMINES
324122
Benzene isonitrile is obtained when benzamine is treated with
