Question

Methyl amine reacts with nitrous acid to form

• A. methyl nitrile
• B. dimethyle ether
• C. Both (a) and (b)
• D. None of these

Answer 1

Answer: (C)

Aliphatic primary amine react with nitrous acid to form diazonium salt which being unstable, decompose to form alcohol. While methyl amine reacts with nitrous acid to form methyl nitrite and dimethyl ether. $C{H}_{3}N{H}_2+2HN{O}_2\to \underset{methylnitrile}{C{H}_{3}ONO}+N_2+H_{2}O$ $\underset{methylamine}{2C{H}_{3}N{H}_2}+2HN{O}_2\to$ $\underset{dimethylether}{C{H}_{3}OC{H}_3}+2N_2+3H_{2}O$