NEET Chemistry Redox Reactions Questions Solved

When SO2 is passed through acidified solution of potassium dichromate, then chromium sulphate is formed. The change in oxidation number of chromium is:

(a) +4 to+2 

(b) +5 to+3

(c) +6 to+3

(d) +7 to+2

Concept Videos :-

#2 | Oxidising & Reducing Agent
#6 | Balancing of Equation by suing n Factor

Concept Questions :-

Oxidation & Reducing Agents (Oxidation No)
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