Question

Blue litmus paper is dipped in a solution .It remains blue.why does the colour of the litmus does not change?

Answer 1

Answer:

Litmus paper is known for its property to change colour from red to blue and vice versa to show change in pH. In acidic medium it is red and in basic medium it is blue.

Explanation:

The reason blue litmus paper did not turn red is because the solution in which you have dipped the blue litmus is a basic one with pH greater than 7.