Question

in MnO4-2 ion the oxidation number of Mn is​

Answer 1

Answer:

We know that the charge on an oxygen atom is −2. Sum of all the oxidation numbers in a polyatomic ion is equal to the charge on the ion. Thus, the total charge on the polyatomic anion is −1. Thus, the oxidation number of Mn in MnO−4 is +7.

Answer 2

Answer:

Oxidation number of Mn in MnO2,MnO4^2 - ,MnO4^- are 4 , + 6 and + 7 respectively.

Explanation: