Question

On electrolysis of fused NaH , hydrogen gas if produced it will be at which electrode. ( cathode / anode / will not be discharged )​

Answer 1

Answer:

Correct option is

A

anode

Sodium hydride is an ionic compound which decomposes below its melting point, so it would be extremely difficult to obtain molten sodium hydride in the first place.

However, if you were able to somehow melt some sodium hydride, its electrolysis would produce liquid sodium metal at the cathode and hydrogen gas at the anode;-

Cathode reaction:

2Na

+

+2e

−

⟶2Na

(l)

Anode reaction:

2H⟶H

2(g)

+2e

−

The overall reaction is:

2NaH

(l)

⟶2Na

(l)

+H

2(g)

Answer 2

Answer:

Correct Answer =A as h plus ions are attracted to the cathode and form hydrogen