Q. A gaseous carbon compound is soluable in dilute HCI. The solution on treating with $NaNO_{2}$ gives off nitrogen leaving behind a solution which smells of wood spirit. The carbon compound is
A) $HCHO$
B) $CO$
C) $C_{2}H_{5}NH_{2}$
D) $CH_{3}NH_{2}$
Explanation
(d)
It is methyl amine which, being basic dissolves in dilute HCI. It with $NaNO_{2}$ evolves nitrogen gas leaving behind methyl alcohol which has smell of wood-spirit.
$CH_{3}NH_{2}\overset{HCI}{\rightarrow}CH_{3}NH_{2}.HCI$
$CH_{3}NH_{2} + HNO_{2}\overset{NaNO_{2}/HCI}{\rightarrow}CH_{3}OH + N_{2} \uparrow + H_{2}O$
methyl alcohol
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.