Question

A solution turns red litmus paper blue its pH is likely to be a 1 b 4 C 5 D 10

Answer 1

Red litmus is turned blue by bases

Also the more the pH the more basic the solution is .

So the required answer is (d) 10

Answer 2

The correct answer is D.10 . It is so because the solution turn red litmus blue means it is basic in nature and pH of base is more than 7.