Which of the followings forms the base of talcum powder?

Options

A. Zine stearate
B. Sodium aluminium silicate
C. Magnesium hydrosilicate
D. Chalk

Answer

**Step-by-Step Solution:**

1. **Understanding Talcum Powder:**
- Talcum powder is commonly used for its moisture-absorbing properties. It is often used in cosmetics and personal care products.

2. **Identifying the Constituents:**
- The main constituents of talcum powder are magnesium, silicon, and oxygen. These elements combine to form specific compounds.

3. **Determining the Base Compound:**
- The base of talcum powder is specifically magnesium hydrosilicate. This compound is composed of magnesium, silicon, and oxygen, which aligns with the constituents mentioned earlier.

4. **Evaluating Other Options:**
- The question may provide other options such as zinc stearate, sodium aluminum silicate, and calcium carbonate (chalk).
- Zinc stearate is used in soaps, sodium aluminum silicate is used for drying purposes, and calcium carbonate is commonly known as chalk, used for writing on blackboards.

5. **Conclusion:**
- After evaluating the options, it is clear that the correct answer is magnesium hydrosilicate, as it forms the base of talcum powder.

**Final Answer:**
- The base of talcum powder is **magnesium hydrosilicate**.

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