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Question: Answered & Verified by Expert
In Castner-Kellner cell for production of sodium hydroxide
Chemistrys Block ElementsNEETNEET 2013 (Karnataka)
Options:
  • A brine is electrolysed using graphite electrodes
  • B molten sodium chloride is electrolysed
  • C sodium amalgam is formed at mercury cathode
  • D brine is electrolysed with $\mathrm{Pt}$ electrodes
Solution:
2892 Upvotes Verified Answer
The correct answer is: sodium amalgam is formed at mercury cathode
In the Castner-Kellner cells, sodium amalgam is formed at the mercury cathode.

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