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How does an acid–base indicator react when placed in an acidic solution?

It changes color.
It dissolves.
It increases the pH of the solution.
It releases hydroxide ions.

Respuesta :

sumana
an indicator changes color when placed in an acidic solution

Answer: Option (a) is the correct answer.

Explanation:

An acid-base indicator is an indicator which changes color according to the pH of solution in which it is placed.

For example, phenolphthalein is an acid-base indicator.

Thus, we can conclude that out of the given options, an acid–base indicator react by changing color when placed in an acidic solution, is the correct option.