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Assertion : Electrolysis of molten CaH2 ...

Assertion : Electrolysis of molten `CaH_2` produces hydrogen gas at anode.
Reason : In `CaH_2`, hydrogen is present in the form of hydride `H^(−)`.

A

If both assertion and reason are true, and reason is the true explanation of the assertion

B

if both assertion and reason are true, but reason is not the true explanation of the assertion.

C

if assertion is true, but reason is false.

D

If both assertion and reason are false.

Text Solution

Verified by Experts

The correct Answer is:
A
`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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