Arrange the following indicators in the order of their colours in the acidic solution. The colours are red, pink, colourless and yellow. The indicators are
(A) Turmeric
(B) Litmus
(C) Methyl orange
(D) Phenolphthalein

Options

A. CBAD
B. CBDA
C. BCAD
D. BCDA

Explanation

To arrange the indicators in the order of their colors in an acidic solution, we will analyze each indicator and determine the color it exhibits when in contact with an acidic solution.

### Step-by-Step Solution:

1. **Identify the Color of Each Indicator in Acidic Solution:**
- **Turmeric (A):** In acidic solutions, turmeric turns yellow.
- **Litmus (B):** Blue litmus paper turns red in acidic solutions.
- **Methyl Orange (C):** In acidic solutions, methyl orange turns pink.
- **Phenolphthalein (D):** In acidic solutions, phenolphthalein is colorless.

2. **List the Colors:**
- Turmeric (A): Yellow
- Litmus (B): Red
- Methyl Orange (C): Pink
- Phenolphthalein (D): Colorless

3. **Arrange the Indicators Based on Their Colors in Acidic Solution:**
- The order of colors in acidic solutions is:
- Red (Litmus)
- Pink (Methyl Orange)
- Colorless (Phenolphthalein)
- Yellow (Turmeric)

4. **Final Arrangement:**
- Based on the colors identified, the correct order of the indicators in acidic solution is:
- B (Litmus) - Red
- C (Methyl Orange) - Pink
- D (Phenolphthalein) - Colorless
- A (Turmeric) - Yellow

Thus, the final arrangement is: **B, C, D, A.**