1.
In the reaction X++XO3+H+X2+H2O\mathrm{X^+} + \mathrm{XO_3^-} + \mathrm{H^+} \rightarrow \mathrm{X_2} + \mathrm{H_2O}, the molar ratio in which X+\mathrm{X^+} and XO3\mathrm{XO_3^-} react is: