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In Castner-Kellner cell for production of sodium hydroxide

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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 option is: (c) sodium amalgam is formed at mercury cathode.

Explanation:

In Castner-Kellner cell, sodium amalgam is formed at mercury cathode.

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