Caustic soda is produced in a mercury cell having anode and cathode made respectively of moving mercury and_________________?
Correct answer: C. Graphite and moving mercury
- A. Moving mercury and graphite
- B. Moving mercury and carbon
- C. Graphite and moving mercury
- D. Moving mercury and crimped steel wire
Explanation
In a mercury cell, graphite or another suitable inert material serves as the anode, while flowing mercury is the cathode. Sodium deposited at the mercury cathode forms sodium amalgam, which is later decomposed to produce caustic soda.
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