The two indicators which give red or pink colour on adding a basic solution are :
A. China rose indicator
B. Turmeric paper indicator
C. Phenolphthalein indicator
D. Blue litmus indicator

Options

A. A and B
B. B and C
C. C and D
D. A and D

Answer

To solve the question of which two indicators give red or pink color when a basic solution is added, we can analyze each option provided:

1. **China Rose Indicator (Option A)**:
- When added to a basic solution, the China Rose Indicator changes to green.
- Therefore, it does not give red or pink color.

2. **Turmeric Paper Indicator (Option B)**:
- When added to a basic solution, turmeric paper turns red.
- This means it gives a red color in basic conditions.

3. **Phenolphthalein Indicator (Option C)**:
- When added to a basic solution, phenolphthalein turns pink.
- Thus, it gives a pink color in basic conditions.

4. **Blue Litmus Indicator (Option D)**:
- When added to a basic solution, blue litmus remains blue.
- Therefore, it does not give red or pink color.

Now, based on the analysis:
- The indicators that give red or pink color in a basic solution are:
- **Turmeric Paper Indicator (B)** - gives red color
- **Phenolphthalein Indicator (C)** - gives pink color

Thus, the correct answer is **B and C**.

### Summary of the Solution:
- **Indicators**:
- A. China Rose Indicator - changes to green (not red or pink)
- B. Turmeric Paper Indicator - gives red color
- C. Phenolphthalein Indicator - gives pink color
- D. Blue Litmus Indicator - remains blue (not red or pink)

### Final Answer:
The two indicators which give red or pink color on adding a basic solution are **B (Turmeric Paper Indicator)** and **C (Phenolphthalein Indicator)**.

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