The EMF of electrode -concentration cell $Zn-Hg(C_1)/Zn^{+2}(aq)/Zn-Hg(C_2)$ at $25^{\large\circ}C$ if the concentration of zinc amalgam are $C_1=2g$ per 100g of mercury and $C_2=1g$ per 100g of mercury.

Question

$\begin{array}{1 1}(a)\;8.8\times 10^{-4}V\\(b)\;8.8\times 10^{-5}V\\(c)\;8.8\times 10^{-6}V\\(d)\;8.8\times 10^{-3}V\end{array}$