A compound X on heating gives a colourless gas. The residue is then d – InterviewSolution

1.	A compound X on heating gives a colourless gas. The residue is then dissolved in water to obtain Y. Excess CO2 is bubbled through the aqueous solution of Y, then Z is formed. Z on gentle heating gives back X. Then X is:
Answer» A compound X on heating gives a colourless gas. The residue is then dissolved in water to obtain Y. Excess $C O_{2}$ is bubbled through the aqueous solution of Y, then Z is formed. Z on gentle heating gives back X. Then X is:

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