Q. p-cresol reacts with chloroform in alkaline medium to give the compound A which adds hydrogen cyanide to form the compound B . The latter on acidic hydrolysis gives chiral carboxylic acid. The structure of the carboxylic acid is
A) [image:12_image185.emf]
B) [image:12_image186.emf]
C) [image:12_image187.emf]
D) [image:12_image188.emf]
Explanation
(c)
$- OH$ is more activating than $–CH_{3}$ in o, p directing thus $–CHO\$ goes to $ortho\$w.r.t., $- OH$ group.
[image:12_image583.emf]
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.