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' in water, a clear solution, 'Z' is obtained. On boiling 'Z', compound 'X' is reformed. The compound 'X' is [CBSE PMT 2004]

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' in water, a clear solution, 'Z' is obtained. On boiling 'Z', compound 'X' is reformed. The compound 'X' is [CBSE PMT 2004]
A.	\[N{{a}_{2}}C{{O}_{3}}\]
B.	\[{{K}_{2}}C{{O}_{3}}\]
C.	\[Ca{{(HC{{O}_{3}})}_{2}}\]
D.	\[CaC{{O}_{3}}\]
Answer» E.

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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' in water, a clear solution, 'Z' is obtained. On boiling 'Z', compound 'X' is reformed. The compound 'X' is [CBSE PMT 2004]

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