Q. An organic compound $C_{3}H_{6}O$ neither gives precipitate with semicarbazide nor reacts with sodium. It could be
A) $CH_{3}CH_{2}CHO$
B) $CH_{3}COCH_{3}$
C) $CH_{2} = CHCH_{2}OH$
D) $CH_{2} = CHOCH_{3}$
Explanation
(d)
Alcohols ($- OH$) react with sodium and carbonyl compounds [image:11_image271.emf] give precipitate with semicarbazide.
Since, the compound with molecular formula, $C_{3}H_{6}O$ does not give precipitate with simicarbazide and does react with sodium, it is neither a carbonyl compound nor an alcohol. Hence, it must be an ether, i.e., $CH_{2} = CHOCH_{3}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.