State true or false.
A compound if acidic will turn all indicators red .

Explanation

**Step-by-Step Solution:**

1. **Understanding the Statement**: The statement claims that if a compound is acidic, it will turn all indicators red. We need to analyze this claim.

2. **Definition of Indicators**: Indicators are substances that change color in response to acidic or basic conditions. Common indicators include litmus paper, phenolphthalein, and bromothymol blue.

3. **Behavior of Litmus Paper**: When an acidic solution is tested with blue litmus paper, it turns red. This is a characteristic behavior of litmus paper in acidic conditions.

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