Calculate the oxidation number of each sulphur atom in the following compounds:

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asked Mar 8, 2018 in Class XI Chemistry by nikita74 (-1,032 points)

Calculate the oxidation number of each sulphur atom in the following compounds: 
(a) Na2S2O3                
(b) Na2S4O6              
(c) Na2SO3 
(d) Na2SO4  

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2 Answers

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answered Mar 8, 2018 by GAURNITAI108 Basic (34 points)
let  x=  oxidation number of   sulphur, and    +1  is   oxidation number of  Na,   -2  is  oxidation number of  O,

also  assume total charge on compound = 0 then solving we get.

(a)   +2 +2x -6=0

x= +2

b)   +2 +4x -12=0

x= +2.5

c) +2 +x -6=0

x= +4

d)  +2 +x -8=0

x= +6
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answered Mar 8, 2018 by vijay Premium (530 points)

(a) Na2S2O3 

Thus, the oxidation states of two S atoms in Na2S2O3 are -2 and +6.
(b) Na2S4O6

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