Which one of the following is not soluble in water?

Options

A. Alum
B. Common salt
C. Turmeric powder
D. Sugar

Answer

To determine which substance is not soluble in water, we need to analyze the options provided.

1. **Identify the substances**: The options mentioned are K2SO4 (Potassium Sulfate), common salt (sodium chloride), and turmeric powder.

2. **Check solubility**:
- **K2SO4 (Potassium Sulfate)**: This compound is known to be soluble in water. When added to water, it dissolves easily.
- **Common Salt (Sodium Chloride)**: Common salt is also soluble in water. It dissolves readily when mixed with water.
- **Turmeric Powder**: Turmeric contains various compounds, including proteins and cellulose, which do not dissolve in water. Therefore, turmeric powder is not soluble in water.

3. **Conclusion**: Among the options given, turmeric powder is the substance that is not soluble in water.

**Final Answer**: Turmeric powder is not soluble in water.

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