Several factories were pouring their wastes in rivers A and B. Water samples were collected from these two rivers. It was observed that sample collected from river A was acidic while that of river B was basic. The factories located near A and B are:

Options

A. Soaps and detergents factories near A and alcohol distillery near B.
B. Soaps and detergents factories near B and alcohol distillery near A.
C. Lead storage battery manufacturing factories near A and soaps and detergents factories near B.
D. Lead storage battery manufacturing factories near B and soaps and detergents factories near B

Explanation

### Step-by-Step Text Solution:

1. **Understanding the Problem**: We have two rivers, A and B, where factories are discharging their waste. The water sample from river A is acidic, while the sample from river B is basic. We need to identify the types of factories located near each river based on the pH of the water samples.

2. **Identifying the pH Levels**:
- **Acidic Water (River A)**: A pH less than 7 indicates acidity. Common sources of acidic waste include alcohol distilleries.
- **Basic Water (River B)**: A pH greater than 7 indicates basicity. Common sources of basic waste include soap and detergent factories.

3. **Analyzing the Options**:
- **Option 1**: Soaps and detergent factories near A, alcohol distillery near B. (Incorrect)
- **Option 2**: Alcohol distillery near A, soaps and detergent factories near B. (Correct)
- **Option 3**: Lead storage battery manufacturing near A, soap and detergent factories near B. (Incorrect)
- **Option 4**: Lead storage battery manufacturing near B, soap and detergent factories near A. (Incorrect)

4. **Conclusion**: Based on the analysis, the correct answer is that the alcohol distillery is located near river A (which is acidic), and the soap and detergent factories are located near river B (which is basic).

### Final Answer:
**Alcohol distillery near river A and soap and detergent factories near river B.**

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