Question

1.
The charge required for the reduction of
1 mole of Mno4^- to Mno2
is
(A) 1F
(B) 3F
(C) 5F
(D) 7F
​

Answer 1

i think it is 3f beause we require 3 electron to reduce mno4- to mno2

Answer 2

oxidation state of Mn in MnO4^- : +7

oxidation state of Mn in MnO2 : +4

charge required : 3F