Question

Among the following,
I. $CH_3NH_2$
II. $(CH_3)_2NH$
III. $(CH_3)_3N$
IV. $C_6H_5NH_2$
Which will give the positive carbylamine test?

• A. I and II only
• B. I and IV only
• C. II and IV only
• D. II and III only

Answer 1

Answer: (B)

$CH _{3} NH _{2}$ Methylamine and $C _{6} H _{5} NH _{2}$ Aniline are both primary amines $\left( R - NH _{2}\right)$. Positive Carbylamine test is given primary amines, which is indicated by the release of foul smell of isocyanides formed in the presence of chloroform and alc. $KOH$.