Q. Benzaldehyde on refluxing with aqueous alcoholic $KCN$ produce
A) Cyanobenzene
B) Cyanohydrin
C) Benzoyl cyanide
D) Benzoin
Explanation
(d)
Benzaldehyde on reaction with alc.$KNC$ undergo condensation reaction to give benzoin.
$\ O$
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$2C_{6}H_{5}CHO\overset{KCN(alc.)\ \ }{\rightarrow}C_{6}H_{5} - CHOH - C - C_{6}H_{5}$
benzoin
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.