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Assertion : H(2) gas is liberated at an...

Assertion `: H_(2)` gas is liberated at anode because.
Reason `:` Sodium hydride contains `H^(-)` ion.

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The correct Answer is:
a
`NaH` is crystalline hydride, it liberate `H_(2)` at anode when electric current is passed through molten `NaH`
at anode `2H^(-) rarr H_(2)+2e^(-)`
at cathode `2Na^(+) +2e^(-) rarr 2 Na`
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