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Q. The oxidation number of sulphur in $H_2S_2O_8$, $H_2S_2O_4$, $H_2S_2O_6$, are respectively

UP CPMTUP CPMT 2010Redox Reactions

Solution:

$H_{2}S_{2}O_{8}$ :
image
$H_{2}S_{2}O_{4}$: image
$H_{2}S_{2}O_{6}$ : image