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In Castner-Kellner cell for production o...

In Castner-Kellner cell for production of sodium hydroxide :

A

Brine is electrolyzed using graphite electrodes

B

Molten sodium chloride is electrolysed

C

Sodium amalgam is formed at mercury cathode

D

Brine is electrolyzed with Pt electrodes

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The correct Answer is:
C
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