Borax is uded as a cleansing agent because on dissolving in water, it gives

Options

A. Alkaline solution
B. Acidic solution
C. Bleaching solution
D. Neutral solution

Explanation

To solve the question regarding why borax is used as a cleansing agent when dissolved in water, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Chemical Composition of Borax**:
- Borax is chemically known as sodium tetraborate, with the formula Na2B4O7.

2. **Dissolution in Water**:
- When borax is dissolved in water, it undergoes a reaction. The dissolution can be represented as:
\[ \text{Na}_2\text{B}_4\text{O}_7 \cdot 10\text{H}_2\text{O} \xrightarrow{\text{H}_2\text{O}} 2\text{NaOH} + 4\text{H}_3\text{BO}_3 \]
- Here, borax reacts with water to produce sodium hydroxide (NaOH) and boric acid (H3BO3).

3. **Understanding the Nature of the Products**:
- Sodium hydroxide (NaOH) is a strong base, while boric acid (H3BO3) is a weak acid.

4. **Determine the Overall pH of the Solution**:
- The presence of a strong base (NaOH) in the solution will dominate the reaction, leading to an overall alkaline (basic) solution.

5. **Conclusion**:
- Therefore, the reason borax is used as a cleansing agent is that when it dissolves in water, it produces an alkaline solution due to the formation of sodium hydroxide.

### Final Answer:
Borax is used as a cleansing agent because, upon dissolving in water, it gives an alkaline solution.

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