Lipids are not soluble in water because

Options

A. Lipids are neutral
B. Lipids are hydrophilic
C. Lipids are hydrophobic
D. Zwitter ion complex of lipids

Answer

### Step-by-Step Solution:

1. **Understanding Lipids**:
- Lipids are a group of biomolecules that include fats, oils, and waxes. They are primarily composed of carbon and hydrogen atoms.

2. **Solubility in Water**:
- Solubility in water depends on the molecular structure of the substance. Water is a polar solvent, meaning it has a partial positive charge on one side and a partial negative charge on the other.

3. **Hydrophobic Nature of Lipids**:
- Lipids are characterized by their hydrophobic (water-repelling) nature. This means that they do not mix well with water. The long hydrocarbon chains in lipids do not interact favorably with water molecules.

4. **Oil and Water Interaction**:
- A common example of the hydrophobic nature of lipids is the interaction between oil and water. When mixed, oil (a lipid) will separate from water, demonstrating that they do not combine.

5. **Conclusion**:
- Therefore, the reason lipids are not soluble in water is due to their hydrophobic nature, which causes them to avoid water.

### Final Answer:
Lipids are not soluble in water because they are hydrophobic in nature.

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