State true or false.
Phenolphthalein is a natural indicator .

Explanation

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks whether the statement "Phenolphthalein is a natural indicator" is true or false.

2. **Definition of Natural Indicators**: Natural indicators are substances that are derived from natural sources and can indicate the pH of a solution. Examples include litmus, turmeric, and red cabbage juice.

3. **Identifying Phenolphthalein**: Phenolphthalein is a chemical compound that is commonly used as an indicator in titrations. It changes color in response to pH changes, specifically from colorless in acidic solutions to pink in basic solutions.

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