NEET2013Chemistry-Electrochemistry

NEET 2013 Chemistry Electrolytic Cells MCQ Question

Type: MCQ-conceptual-Medium-Class 12

In Castner-Kellner cell for production of sodium hydroxide:

A

brine is electrolyzed using graphite electrodes

B

molten sodium chloride is electrolyzed

C

sodium amalgam is formed at mercury cathode

D

brine is electrolyzed with Pt electrodes

Correct Answer

Option C

Detailed Explanation

In the Castner-Kellner cell, brine is electrolyzed, and sodium amalgam is formed at the mercury cathode. This amalgam reacts with water to produce sodium hydroxide.

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