Q. Which of the following is dihydric alcohol?

A) Glycerol
B) Ethylene glycol
C) Catechol
D) Resorcinol
Explanation

(b)
Glycols are dihydric alcohols (having two hydroxyl groups). Ethylene glycol is the first member of this series.
$CH_{2}OH$
$|$
$CH_{2}OH$
ethylene glycol

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.