Question

What is the effect of sulphuric acid on the following?
i.Red litmus ii. Blue litmus iii. Phenolphthalein

Answer 1

1. red litmus remains same
2. turns red
3. colourless

Answer 2

Hello...
Effects of sulphuric acid are as follows...
(I) Red litmus paper remain same when dipped in sulphuric acid .

(ii) Blue litmus paper turns red when dipped in sulphuric acid .

(iii) Phenolphthalein turns colorless if dipped in sulphuric acid.

Hope my answer will help you..