Question

You are given dilute sulphuric acid. What is the effect of it on the following?

a) Red litmus b) Blue Litmus c) Phenolphthalein​

Answer 1

Answer:

Red Litmus- remains red
Blue Litmus- turn red
Phenolphthalein- remains colourless

Explanation:

Dilute sulphuric acid is acidic in nature so red litmus in acidic solution remains red, blue litmus in acidic solution turns red whereas phenolphthalein remains colorless in acidic solution.