Question

mnso4 hot to balance in oxidation no.

Answer 1

Mn+2 and SO4-2

Answer 2

[SO4]-2 mean
O has -2 charge
since 4O are therefore total charge on O is =-2*4=-8
since total charge outside the square bracket is -2 hence
charge on sulfur should be +6

Answer 3

+6 -8=-2

Answer 4

Mn =+2
S=+6
O=-2