Question

An aqueous solution ‘A’ turns the phenolphthalein solution pink. On addition of an aqueous solution ‘B’ to ‘A’, the pink colour disappears. Which of the following statement is true for the solutions ‘A’ and ‘B’.

Options

• A is strongly basic and B is a weak base.

• A is strongly acidic and B is a weak acid.

• A has a pH greater than 7 and B has a pH less than 7.

• A has a pH less than 7 and B has a pH greater than 7.

Answer 1

A has a pH greater than 7 and B has a pH less than 7.