Question

give me solution of this question​

Answer 1

Answer:

option (3) is correct.

MnO4- is reduced and SO3^-2 is oxidised.

Explanation:

MnO4- is reduced because oxidation number of Mn is changed from +7 to +2.

Oxidation number is decreased .

Then, MnO4- is reduced.

SO3^-2 is oxidised because oxidation number of S is changed from +4 to +6.

Oxidation number is increased .

Then, SO3^-2 is oxidised.

Oxidation number

The degree of oxidation of an atom or ion or molecule, for simple atoms or ions the the oxidation number is equal to the ionic charge.