Q. The oxidation number of sulphur in $H_{2} S_{2} O_{8}$ , $H_{2} S_{2} O_{4}$ , $H_{2} S_{2} O_{6}$ , are respectively

4418 196 UP CPMTUP CPMT 2010Redox Reactions Report Error

A

$+ 3$ , $+ 4$ , $+ 5$

7%

B

$+ 5$ , $+ 4$ , $+ 3$

8%

C

$+ 6$ , $+ 3$ , $+ 5$

80%

D

$+ 3$ , $+ 5$ , $+ 4$

4%

Solution:

$H_{2} S_{2} O_{8}$ :

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