When electric current is passed through an ionic hydride in molten state:

Options

A. Hydrogen is liberated at the anode
B. Hydrogen is liberated at the cathode
C. No reaction takes place
D. Hydride ion migrates towards cathode

Answer

A

Explanation

`M^(+)H^(-)rarrM^(+)+underset("Hydride ion")(H^(-))`
`H^(-)rarr1/2H_2+e^(-)` (At anode)