Question

Partial hydrogenation of vegetable oils in the presence of Ni catalyst at 200°C gives:

• A. Butter
• B. Vanaspati ghee
• C. Cheese
• D. Margarine

Hint:

Partial hydrogenation converts liquid vegetable oils into semi-solid fats like margarine. Nickel is a common catalyst used in hydrogenation reactions. Fully hydrogenated oils are used to make products like vanaspati ghee.

Answer 1

The Correct Option is D

Partial hydrogenation of vegetable oils involves adding hydrogen to unsaturated fats in the presence of a nickel catalyst at high temperatures. This process converts some of the double bonds in the unsaturated fats into single bonds, making the fats more solid and stable. Butter is a dairy product made from cream or milk and is not produced by hydrogenation. Vanaspati ghee is typically made by fully hydrogenating vegetable oils, not partial hydrogenation. Cheese is a dairy product unrelated to hydrogenation. Margarine, on the other hand, is produced by partial hydrogenation of vegetable oils, making it the correct answer. 

Conclusion: The correct answer is (D) Margarine.