Ncert Exercises & Solutions

Which of the following species are involved in the carbylamine test?

a. R—NC
b. CHCl₃
c. COCl₂
d. NaNO₂ + HCl

Choose the correct option
1. (a, b)
2. (b, c)
3. (c, d)
4. (a, d)

Carbylamine reaction Amine on reaction with a mixture of CHuCl₃ and KOH produces alkyl isocyanate.

R - {NH}_{2} + {CHCl}_{3} + 3 KOH ⟶ RNC + 3 KCl + 3 H_{2} O

Only RNC and CHuCl₃ are involved in carbylamine reaction. Hence, (a) and (b) are correct.