Turmeric is a natural indicator. On adding its paste to acid and base separately, which colours would be observed

Options

A. Yellow in both acid and base .
B. Yellow in acid and red in base .
C. Pink in acid and yellow in base .
D. Red in acid and blue in base .

Answer

To determine the colors observed when turmeric paste is added to an acid and a base, follow these steps:

### Step-by-Step Solution:

1. **Understand Turmeric as an Indicator**:
- Turmeric is a natural indicator that helps identify whether a substance is acidic or basic.

2. **Identify the Color of Turmeric**:
- Turmeric paste is yellow in color.

3. **Test Turmeric with Acid**:
- When turmeric paste is added to an acidic solution, the color remains unchanged. Therefore, the color observed in an acid will be yellow.

4. **Test Turmeric with Base**:
- When turmeric paste is added to a basic solution, the color changes to red. Therefore, the color observed in a base will be red.

5. **Summarize the Observations**:
- In summary, when turmeric paste is added to:
- Acid: Yellow color observed
- Base: Red color observed

### Final Answer:
- **In acid, the color observed is yellow. In base, the color observed is red.**