Published by:
CGP EDU Academic Team
Published on: August 12, 2026
The following is a reversible reaction:
A
, heated in a sealed tube
B
heated in a closed vessel
C
heated in a closed vessel
D
heated with excess of 
in a closed vessel
Text Solution
Verified by ExpertsThe correct answer is:
C
In closed system, CaO and 
can combine to form 
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