If $\lambda_{m}^{o}(SO_{4}^{2-}) = 160 \ S \ cm^{2} \ mol^{-1}$ and $\Lambda_{m}^{o}(Al_{2}(SO_{4})_{3}) = 758 \ S \ cm^{2} \ mol^{-1}$,then calculate $\lambda_{m}^{o}(Al^{3+})$.

Suppose that an alkaline dry cell was manufactured using cadmium metal rather than $Zn$. What effect would this have on the standard emf of the cell? The standard reduction potential $E^o_{Cd^{2+}/Cd} = -0.40 \ V$ while $E^o_{Zn^{2+}/Zn} = -0.76 \ V$.

For the cell: $Ag | AgCl | KCl(1 \ M) || KBr(1 \ M) | AgBr | Ag$,select the correct option.

Give true $(T)$ and false $(F)$ for following statements :
$(1)$ There is no difference between the galvanic and the electrolytic cell.
$(2)$ In electrolytic cell,anode of galvanic cell is cathode and cathodes are anode.
$(3)$ The flow of current and electron in electrolytic cell is opposite to the galvanic cell.
$(4)$ When $2.0 \ V$ external current in the opposite direction is passed through the Daniell cell,in such condition there is no effect on Daniell cell.

Upon dipping a copper rod into an aqueous solution of the salt,the solution that turns blue is

The efficiency of a fuel cell is given by