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Which of the following exhibits different colors in acidic and basic solutions?

1. Buffer
2. Indicator
3. Arrhenius acid
4. Arrhenius base E. Neutral condition

Correct answer: Indicator

Solution

An indicator is designed to show different colors in acidic and basic environments, so it can reveal the pH of a solution. Buffers, Arrhenius acids, Arrhenius bases, and neutral conditions do not have this color-changing property.

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