An aqueous solution ‘A’ turns phenolphthalein solution pink. When another aqueous solution ‘B’ is added to the pink solution, the pink color disappears. Adding a few drops of solution ‘A’ again restores the pink color. The respective changes in the nature of the solution are:

Question

cdquestions Admin · Accepted Answer

Phenolphthalein turns pink in a basic solution and colorless in an acidic solution. When ‘B’ neutralizes the basic nature, the color disappears, and adding ‘A’ restores the pink color.

Answer

basic → acidic → basic

Answer

acidic → basic → acidic

Answer

basic → basic → acidic

Answer

basic → acidic → basic

An aqueous solution ‘A’ turns phenolphthalein solution pink. When another aqueous solution ‘B’ is added to the pink solution, the pink color disappears. Adding a few drops of solution ‘A’ again restores the pink color. The respective changes in the nature of the solution are:

The Correct Option is D

Solution and Explanation

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