$A$ metal used in storage batteries is

When does the galvanic cell become an electrolytic cell?

Which of the following is used as an electrolyte in a dry cell (Leclanché cell)?

An electrochemical cell is constructed using half-cells in the direction of spontaneous change: $Fe(OH)_{2}(s) + 2e^{-} \rightarrow Fe(s) + 2OH^{-}(aq)$ $(E^{0} = -0.88 \text{ V})$ and $AgBr(s) + e^{-} \rightarrow Ag(s) + Br^{-}(aq)$ $(E^{0} = +0.07 \text{ V})$. Which of the following options is correct?

Which of the following metals can displace copper from a copper sulphate solution?

What is the change in oxidation number of $Pb$ at the positive electrode of a lead accumulator acting as a galvanic cell?