In which of the following case(s), there is a change in oxidation number?
Answer & explanation
Correct answer: option 2
Cr2O72- + 3SO2 + 2H+ → 2Cr3+ + 3SO42- + H2O
+6 +4 +3 +6
In which of the following case(s), there is a change in oxidation number?
Correct answer: option 2