JEE Main Solved Paper 2017 Question 9
Question: In the following reactions, ZnO is respectively acting as a/an : ] $ ZnO+Na _2O\to Na _2ZnO _2 $ $ ZnO+CO _2\to ZnCO _3 $ [JEE Main Solved Paper-2017]
Options:
A) base and acid
B) base and base
C) acid and acid
D) acid and base
Show Answer
Answer:
Correct Answer: D
Solution:
Although ZnO is an amphoteric oxide but in given reaction.
[a] $ \underset{acid}{\mathop{ZnO}},+\underset{base}{\mathop{Na _2O}},\xrightarrow{{}}\underset{salt}{\mathop{Na _2ZnO _2}}, $
[b] $ \underset{base}{\mathop{ZnO}},+\underset{acid}{\mathop{CO _2}},\xrightarrow{{}}\underset{salt}{\mathop{ZnCO _3}}, $
