To a 25 ml H_(2)O_(2) solution, excess of acidified solution of potassium iodide was added. The iodine liberated required 20 ml of 0.3 N sodium thiosulphate solution. The volume strength of H_(2)O_(2) solution is

To a 25 ml H_(2)O_(2) solution, excess of acidified solution of potass

1.	To a 25 ml H_(2)O_(2) solution, excess of acidified solution of potassium iodide was added. The iodine liberated required 20 ml of 0.3 N sodium thiosulphate solution. The volume strength of H_(2)O_(2) solution is
Answer» `1.344` `0.672` `2.688` `0.896` SOLUTION :Eq `H_(2)O_(2)` = Eq `I_(2)` = Eq `NA_(2)S_(2)O_(3)` `(25)/(1000)XXN=(20xx0.3)/(1000)` `N=(1.2)/(5)=0.24N=1.344V`