Chemical Process
Mercury electrolytic cells are preferred over diaphragm electrolytic cell (for production of caustic soda), as it

Has larger production capacity per unit cell
Consumes less power per ton of Cl₂ produced
Produces high purity (70%) caustic soda directly
All of these

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Chemical Process
Shaving soaps are

Soft potassium soaps (potassium salt of fatty acid) with free stearic acid to give lather a lasting property
High free alkali soaps having excess of cane sugar and alcohol
None of these
Metalic soaps compounded with frothing agents

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