A few drops of phenolphthalein indictor were added to an unknown solution A. It scquired pink colour Now another unknown solution B was added to it dropwise and the solution ultimately because colourless. Predict the nature of the solution A and B.

Answer

D

Explanation

The solution A is basic as it acquired a pink colour when a few drops of phenolphthalein indicator were added to it Since the solution become colourless on adding few drops of B to this solution ,the solution B is acidic in nature as a neutralization reaction takes place between acid base.