Published by:
CGP EDU Academic Team
Published on: August 13, 2026
A solid compound 
on heating gives 
gas and a residue. The residue mixed with water forms 
. On passing an excess of 
through 
in water, a clear solution 
is obtained. On boiling 
, compound 
is reformed. The compound 
is
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
B
The given compound 
must be 
. It can be explained by following reactions:
(Y)
(Z)
( X )
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