Turmeric (Haldi) rapidly becomes colourless on addition of

Options

A. baking soda
B. vinegar
C. lemon juice
D. alcohol

Explanation

To solve the question regarding turmeric (haldi) becoming colorless upon the addition of certain substances, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Turmeric as a Natural Indicator**:
- Turmeric is known to be a natural pH indicator. It exhibits different colors when exposed to acidic or basic solutions.

2. **Identifying the Color Change**:
- When turmeric is added to an acidic solution, it remains yellow.
- When turmeric is added to a basic solution, it turns red.

3. **Analyzing the Given Options**:
- **A. Baking Soda**: Baking soda is a basic substance. When added to turmeric, it would turn red, not colorless.
- **B. Vinegar**: Vinegar is acidic. When added to turmeric, it would remain yellow.
- **C. Lemon Juice**: Lemon juice is also acidic. It would keep the turmeric yellow.
- **D. Alcohol**: Alcohol is neither strongly acidic nor basic, and it does not cause a color change in turmeric.

4. **Conclusion**:
- The only option that would cause turmeric to become colorless is **D. Alcohol**, as it does not interact with the turmeric to change its color.

### Final Answer:
Turmeric (haldi) rapidly becomes colorless on the addition of **D. Alcohol**.

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