Last Activity: 7 Years ago
In this 4 electrons are accepted by the sulphite ion. So a drop of 4 units in oxidation state of S should take place I.e., +2 -> -2. So answer is (2).
Prepraring for the competition made easy just by live online class.
Full Live Access
Study Material
Live Doubts Solving
Daily Class Assignments
Get your questions answered by the expert for free
Last Activity: 2 Year ago(s)