In the reaction, I2+2S2O2−3→2I−+S4O2−6 equivalent weight of iodine is
A
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B
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C
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D
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Solution
The correct option is A The oxidation number of iodine changes from 0 to -1. Since there are two iodine atoms in the iodine molecule, the n - factor for iodine is 2. Equivalentwtofiodine=Molecularweight2