$A$ solution of copper sulphate may be kept safely in the container made up of

Determine True $(T)$ or False $(F)$ :
$1.$ Life of Nickel-Cadmium cell is less than lead storage cell.
$2.$ Dry cell is secondary cell while nickel-cadmium cell is primary cell.
$3.$ Both dry cell and nickel-cadmium cells are primary cell.

Mark the false statement.

How do the ions transfer between solutions in an electrochemical cell?

For the decomposition of $Al_2O_3$ at $500\,^{\circ}C$,the Gibbs energy change is given by $\frac{2}{3} Al_2O_3 \rightarrow \frac{4}{3} Al + O_2$,$\Delta G = 966 \, kJ \, mol^{-1}$. What is the potential difference (in $V$) required for the electrolytic reduction of $Al_2O_3$ at $500\,^{\circ}C$?

The standard Gibbs free energy change ($\Delta G^{\circ}$ in $kJ \, mol^{-1}$),in a $Daniell$ cell $(E^{\circ}_{cell} = 1.1 \, V)$,when $2 \, moles$ of $Zn_{(s)}$ is oxidised at $298 \, K$,is closest to