1 mole of methyl amine on reaction with nitrous acid gives at N.T.P

Methyl amine reacts with nitrous acid to form methyl alcohol and nitrogen is evolved ..

${\mathrm{CH}}_3{\mathrm{NH}}_2+\mathrm{HONO}\to {\mathrm{CH}}_3\mathrm{OH}+{\mathrm{N}}_2+{\mathrm{H}}_2\mathrm{O}$

1 mole of methyl amine on reaction with  ${\mathrm{HNO}}_2$ gives 22.4 litre of ${\mathrm{N}}_2$ at N.T.P.