A solution turns red litmus blue and turns phenolphthalein solution pink. The solution is

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Acid

Base

Neutral

Salt

answer is B.

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Detailed Solution

A solution turns red litmus blue and turns phenolphthalein solution pink. The solution is a base.
An acid is able to turn blue litmus red, while a base turns red litmus blue. The pH of the solution is therefore in the base range, which is between 7 and 14. In a basic solution phenolphthalein turns pink while in an acidic solution it remains colourless.

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