Question

Assign the oxidation number of underline species in the following
KMnO4 [Mn ] is underline
SO 2- 3 [ S] IS underline

Answer 1

Answer:

Mn = x

then

1+x+4(-2)

X = 7

in SO2

S=x

x+(-2)2

X = 4

similarly....

in SO3

S = 6

HOPE IT HELPS.......