1.

Assertion: Electrolysis of molten CaH_(2) products hydrgen gas at anode. Reason: In CaH_(2), hydrogen is present in the form of H^(-).

Answer»

If both ASSERTION and REASON are true, and reason is the true EXPLANATION of the assertion
if both assertion and reason are true, but reason is not the true explanation of the assertion.
if assertion is true, but reason is false.
If both assertion and reason are false.

Solution :`CaH_(2) overset("melt")toCa^(2+)+2H^(-)`
At andoe: `H^(-)toH+e^(-),H+HtoH_(2)`
Hence, R is the CORRET explanation of A.


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