D-And F-Block Elements Ques 80
Question: Which is an amphoteric oxide
[JEE Orissa 2004, 05]
Options:
A) ZnO
B) CaO
C) BaO
D) SrO
Show Answer
Answer:
Correct Answer: A
Solution:
ZnO is an amphoteric oxide,
$ ZnO+H_2SO_4\to ZnSO_4+H_2O $
$ ZnO+2NaOH\to Na_2ZnO_2+H_2O $