Q. Picric acid is a stronger acid than acetic acid and benzoic acid. It contains
A) $- SO_{3}$H group
B) Two $–COOH\$ groups
C) Phenolic group
D)
Explanation
(d)
Picric acid is 2, 4, 6-trinitrophenol. It is due to presence of three –I showing –$NO_{2}$ groups, is more acidic than acetic acid and benzoic acid.
[image:11_image263.emf]
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.