Q. Which one of the following is an amphoteric oxide?
A) $ZnO$
B) ${Na}_{2}O$
C) ${SO}_{2}$
D) $B_{2}O_{3}$
Explanation
(a)
ZnO can react with acid and base both
$ZnO + 2HCl$ $ZnCl_{2} + H_{2}O$
$ZnO + 2NaOH$ $Na_{2}ZnO_{2} + H_{2}O$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.