A ,$1 g$ sample of ${\mathrm{Fe}}_2{\mathrm{O}}_3$ solid of 55.2 percent purity is dissolved in acid and reduced by heating the solution with zine dust. The resultant solution 18 cooled and made upto $100 mL$ of this solution requires $25 mL$ of $0.0167 M$ solution of an oxadant for titration. Calculate the number of moles of electrons taken up by one mole of oxidant in the reaction of the above titration.