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An element X reacts with H(2) gas at 200...

An element X reacts with `H_(2)` gas at `200^(@)C` to form compound Y. when Y is heated to a higher temperature, it decomposes to element X and `H_(2)` gas in the ratio of 559 ml of `H_(2)` (measured at STP) for 1.00 g of X reacted. X also combines with `Cl_(2)` to form a compound Z which contains 63.89 peerrcent mass of chlorine. identify X, Y and Z.

Text Solution

Verified by Experts

The correct Answer is:
`X=Ca`
Y=`CaH_(2)`
`Z=CaCl_(2)`
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