A compound X on heating gives a colourless gas. The residue is dissolved in water to obtain Y. Excess CO2 is bubbled through aqueous solution of Y and Z is formed. Z on gentle heating gives back X. Th

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Question

A compound X on heating gives a colourless gas. The residue is dissolved in water to obtain Y. Excess CO2 is bubbled through aqueous solution of Y and Z is formed. Z on gentle heating gives back X. The X is :

Prashant Kotian · Accepted Answer

Correct answer: A

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