If the molecular wt. of Na2S2O3 and I2 are M1 and M2 respectively, then what will be the equivalent wt. of Na2S2O3 and I2 in the following reaction?

In hypo two sulphur atoms per molecule is undergoing change in oxidation state.Valency factor (n-factor) =|2×2.5-2×2|=1ENa2S2O3=M11=M1Valency factor of I2 = |2-1-20|=2EI2=M22