Question

Oxidation number of S2O3 (2-)

Answer 1

Oxidation number for O is -2

Oxidation number for S

2 X ON (S) + 3 X ON(O) = -2
2 X ON (S) +3 X (-2) = -2
2 X ON (S) - 6 = -2
2 X ON (S) = -2+ 6
2 X ON (S) = 4
ON (S) = 2