Published by:
CGP EDU Academic Team
Published on: August 12, 2026
The pair that does NOT require calcination is:
A
and 
B
and 
C
and 
D
and 
Text Solution
Verified by ExpertsThe correct answer is:
A
JEE Main 2019
Calcination involves the conversion of metal carbonatesor hydrated oxides into metal oxides. 
and 
are oxides, therefore, does not require calcination.
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