Vegetable oils are

Options

A. Sodium salts of higher fatty acids
B. Potassium salts of higher fitty acids
C. Mixture of sodium and potassium salts of higher fatty acids
D. Glycerides of fatty acids

Answer

**Step-by-Step Solution:**

1. **Understanding Vegetable Oils**: Vegetable oils are primarily composed of triglycerides, which are a type of lipid. They are formed from glycerol and three fatty acid molecules.

2. **Identifying the Structure**: A triglyceride consists of a glycerol backbone attached to three long-chain fatty acids. This structure is essential for classifying substances as vegetable oils.

3. **Evaluating the Options**:
- **Option A**: Sodium salts of higher fatty acids. This describes soap, not vegetable oil, as it refers to the saponification process where triglycerides are converted into soap.
- **Option B**: Potassium salts of higher fatty acids. Similar to option A, this also refers to soap and not vegetable oil.
- **Option C**: Mixture of sodium and potassium salts of higher fatty acids. Again, this describes soap and is incorrect.
- **Option D**: Glycerides of fatty acids. This is the correct description of vegetable oils, as they are indeed triglycerides (glycerides) of fatty acids.

4. **Conclusion**: Based on the evaluation of the options, the correct answer is **Option D**, which states that vegetable oils are glycerides of fatty acids.

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