Question

A solution turns red litmus blue, its pH is likely to be (a) 1 (b) 4 (c) 5 (d) 10

Answer 1

5......................

Answer 2

If the solution turns red litmus blue it is a 'base'. Basically acids have a pH level from 1 to 6 , bases have pH level from 8 to 14 and neutral substances pH level as 7 so the answer is likely to be (d)-10