Which of the following is not belonging to lipids ?

Options

A. carbohydrates
B. oils
C. fats
D. waxes

Answer

To determine which of the following substances does not belong to lipids, we need to analyze the options provided: carbohydrates, fats, oils, and waxes.

### Step-by-Step Solution:

1. **Identify the Options**: The options given are carbohydrates, fats, oils, and waxes.

2. **Define Lipids**: Lipids are a group of organic compounds that are insoluble in water but soluble in organic solvents. They include fats, oils, waxes, and certain vitamins.

3. **Analyze Each Option**:
- **Fats**: These are lipids that are solid at room temperature and are composed of glycerol and fatty acids.
- **Oils**: These are also lipids but are liquid at room temperature and are similarly composed of glycerol and fatty acids.
- **Waxes**: These are long-chain fatty acids esterified to long-chain alcohols and are also classified as lipids.
- **Carbohydrates**: These are organic compounds made up of carbon, hydrogen, and oxygen, typically with a molecular formula of Cn(H2O)m. They are generally soluble in water and are not classified as lipids.

4. **Conclusion**: Since carbohydrates are soluble in water and do not share the properties of lipids (which are insoluble in water), carbohydrates do not belong to the lipid category.

5. **Final Answer**: Therefore, the substance that does not belong to lipids is **carbohydrates**.