Aliphatic Compounds Containing Nitrogen - Result Question 25
####26. Carbylamine test is performed in alc. $KOH$ by heating a mixture of
(1984, 1M)
(a) chloroform and silver powder
(b) trihalogenated methane and a primary amine
(c) an alkyl halide and a primary amine
(d) an alkyl cyanide and a primary amine
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Answer:
Correct Answer: 26. (b)
Solution:
- $R-NH _2+CHCl _3 \xrightarrow{KOH} \underset{\begin{array}{c}\text { isocyanide } \ \text { (foul smell) }\end{array}}{R-NC \text { ‘Carbylamine test’ }}$ The above test is characteristic of primary amine and used to distinguish primary amine from other amines.
(Hofmann’s bromamide reaction)
