Which of the following gases will bleach moist litmus paper?

Dessyfrommars

1 year ago

The correct answer is A. Cl2 (Chlorine).

Chlorine gas is a strong oxidizing agent and has bleaching properties. When it comes into contact with moist litmus paper, it will bleach the litmus, removing its color.

This is because chlorine reacts with water to form hypochlorous acid, which is a strong bleaching agent:

Cl2 + H2O → HOCl + HCl

The hypochlorous acid (HOCl) is responsible for the bleaching action.