An electric current is passed through two electrolytic cells connected in series.One containing a solution of silver nitrate and the other solution of $H_2SO_4$.What volume of oxygen measured at $25^{\large\circ}C$ and 750mm of Hg would be liberated from $H_2SO_4$ if $8\times 10^{22}$ ions of $Ag^+$ are deposited from the silver nitrate solution?

Question

$\begin{array}{1 1}(a)\;0.89l&(b)\;0.82l\\(c)\;0.7l&(d)\;0.72l\end{array}$