A solid compound 'X' on heating gives \[C{{O}_{2}}\] gas and a residue. The residue mixed with water forms 'Y'. On passing an excess of \[C{{O}_{2}}\] through 'Y' water, a clear solution 'Z', is obtained. On boil. 'Z', compound 'X' is reformed. The compound 'X' is

A solid compound 'X' on heating gives \[C{{O}_{2}}\] gas and a residue

1.	A solid compound 'X' on heating gives \[C{{O}_{2}}\] gas and a residue. The residue mixed with water forms 'Y'. On passing an excess of \[C{{O}_{2}}\] through 'Y' water, a clear solution 'Z', is obtained. On boil. 'Z', compound 'X' is reformed. The compound 'X' is
A.	\[Ca{{(HC{{O}_{3}})}_{2}}\]
B.	\[CaC{{O}_{3}}\]
C.	\[N{{a}_{2}}C{{O}_{3}}\]
D.	\[{{K}_{2}}C{{O}_{3}}\]
Answer» C. \[N{{a}_{2}}C{{O}_{3}}\]

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A solid compound 'X' on heating gives \[C{{O}_{2}}\] gas and a residue. The residue mixed with water forms 'Y'. On passing an excess of \[C{{O}_{2}}\] through 'Y' water, a clear solution 'Z', is obtained. On boil. 'Z', compound 'X' is reformed. The compound 'X' is

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