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To a 25 mL H_2O_2 solution, excess of acidified solution of KI was added. The iodine liberated required 20 mL of 0.3 N Na_2S_2O_3 solution. The volume strength of H_2O_2 solution is (1) 1.344 g/L (2) 3.244 g/L (3) 5.4 g/L (4) 4.08 g/L. |
| Answer» To a 25 mL H_2O_2 solution, excess of acidified solution of KI was added. The iodine liberated required 20 mL of 0.3 N Na_2S_2O_3 solution. The volume strength of H_2O_2 solution is (1) 1.344 g/L (2) 3.244 g/L (3) 5.4 g/L (4) 4.08 g/L. | |