Question

In the presence of a base, blue litmus paper will .O turn purplestay blueto turn red​

Answer 1

Answer:

In the presence of a base, blue litmus paper will turn red........

Answer 2

Answer:

In the presence of a base the blue litmus paper would remain blue.

Explanation:

This is because the litmus paper will react depending on the pH of the solution added. If the solution is acidic pH < 7, the litmus paper will turn red. If the solution is basic, pH > 7  the litmus paper will turn blue. If the litmus paper is blue when a base is added it will remain blue.