Chemical Process
Carboxymethyl cellulose (CMC) is added in detergents to

Inhibit corrosion in washing machines made of aluminium
Prevent redeposition of soil on cleaned surface
Act as optical brightening agent
None of these

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

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

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