Question

what is the effect of sulphurous acid on litmus papers

Answer 1

Answer:

Explanation:(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.

Answer 2

what is the effect of sulphurous acid on litmus papers?

1. Red litmus paper remain same when dipped in sulphuric acid.
2. Blue litmus paper turns red when dipped in sulphuric acid.
3. Phenolphthalein turns colorless if dipped in sulphuric acid.