Question

when few drops of phenolphthalein are added to a dilute solution of sodium hydroxide a pink colour is produced. What will be tye colour of the final mixture when excess of hcl is added to it?​

Answer 1

The final colour of the solution would be colurless because excess HCl would neutralise NaOH because phenolphtalein is colourless in acidic solution.

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Answer 2

The final colour of the mixture will be colourless when excess of HCL is added.