1.

To 25 ml of H_(2)O_(2) solution, excess of acidified solution of KI was added. The iodine liberated required 20 ml of 0.1 N Na_(2)S_(2)O_(3) solution. Calculate the % of H_(2)O_(2) solution.

Answer»

0.000136
0.00136
6.8E-5
0.00068

Answer :B


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