Q. Iodine stains on clothes can be removed by

2008 256 The p-Block Elements - Part2 Report Error

A

NaCl

14%

B

NaBr

29%

C

KI

43%

D

$N a_{2} S_{2} O_{3}$

14%

Solution:

$2 N a_{2} S_{2} O_{3} + I_{2} \to N a_{2} S_{4} O_{6} + 2 N a I$