Question

oxidation number for S2O3

Answer 1

o no.of S2O3 is
=o no.ofO is -2
let x=o no.ofS
=2x + 3(-2)=0
('0' bcoz sum of all o no. is power of compound )
x=+3

Answer 2

Hello !
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We know Oxidation state of O = -2 
Let oxidation state of S = x 
Here ,
2x + -6 = 0 
 2x = 6 
 x   = 3 
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