Dalda is prepared from oils by

Options

A. Hydrolysis
B. Distillation
C. Oxidation
D. Reduction

Explanation

To answer the question "Dalda is prepared from oils by", we need to understand the process involved in the conversion of oils into Dalda. Here’s a step-by-step solution:

### Step 1: Identify the Nature of Oils
Oils, particularly those used in cooking, are primarily composed of unsaturated fatty acids. Unsaturated fatty acids contain one or more double bonds in their carbon chain.

**Hint:** Remember that unsaturated fatty acids have double bonds, while saturated fatty acids do not.

### Step 2: Understand Dalda
Dalda is a type of vanaspati, which is a hydrogenated fat. It is used as a substitute for ghee or butter in cooking. The key point here is that Dalda is made from saturated fatty acids.

**Hint:** Dalda is a solid fat, which indicates it is saturated.

### Step 3: The Process of Hydrogenation
To convert unsaturated fatty acids (found in oils) into saturated fatty acids (like those in Dalda), a process called hydrogenation is used. During hydrogenation, hydrogen gas is added to the unsaturated bonds in the fatty acids, effectively "saturating" them.

**Hint:** Hydrogenation involves adding hydrogen to unsaturated fats to make them saturated.

### Step 4: Conclusion
Thus, the correct answer to the question is that Dalda is prepared from oils by **hydrogenation** (or reduction).

**Final Answer:** Dalda is prepared from oils by hydrogenation.