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

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

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Chemical Process
Oils are partially hydrogenated (not fully) to manufacture vanaspati, because fully saturated solidified oils

Are prone to rancid oxidation
Always contain some amount of nickel (as their complete removal is very difficult)
Cause cholesterol build up and blood clotting
Have affinity to retain harmful sulphur compounds

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Chemical Process
Pick out the wrong statement pertaining to solvent extraction of oil.Rate of extraction

Increases with the increasing flake size keeping the flake thickness constant
Decreases with decrease of thickness of the flakes
Decreases as the moisture content of flakes increases
Increases Considerably with the rise of temperature

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