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Sulphur in +3 oxidation state is present...

Sulphur in `+3` oxidation state is present in

A

Sulphurous acid

B

Pyrosulphuric acid

C

Dithionous acid

D

Tiosulphuric acid

Text Solution

Verified by Experts

The correct Answer is:
C
Dithionous acid `(H_2S_2O_4)` has sulphur in +3 oxidation state.
`HO-overset(O)overset(||)S-overset(O)overset(||)S-OH ,2(+1)+2x +4(-2)=0`
`2x=8-2=6, x=+3`
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