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Dalda (Vanaspathi) is prepared by:

1. hydrogenation of triolien
2. hydrogenation of soap
3. hydrogenation of tristearine
4. electrolysis of potassium acetate

Correct answer: hydrogenation of triolien

Solution

Dalda (vanaspati) is made by hydrogenating an unsaturated oil, which turns liquid triglycerides into a more saturated, semi-solid fat. Triolein is an unsaturated triglyceride, so its hydrogenation gives vanaspati.

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