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A compound X on heating gives a colourle...

A compound X on heating gives a colourless gas. This residue is dissolved in water to obtain Y. excess `CO_(2)` is bubbled through aqueous solution of Y, Z is formed. Z on gentle heating give back X. the X is

A

`CaCO_(3)`

B

`Ca(HCO_(3))_(2)`

C

`Na_(2)CO_(3)`

D

`NaHCO_(3)`

Text Solution

Verified by Experts

The correct Answer is:
A
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