Which of the following is not used to construct a salt bridge?

In the cell represented $Pb_{(s)}|Pb_{(1 \ M)}^{2+} || Ag_{(1 \ M)}^{+}|Ag_{(s)}$,the reducing agent is

What are anode and cathode?

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

Which of the following metals will not react with a solution of $CuSO_4$?

Depict the galvanic cell in which the reaction $Zn_{(s)} + 2Ag^{+}_{(aq)} \rightarrow Zn^{2+}_{(aq)} + 2Ag_{(s)}$ takes place,further show:
$(i)$ which of the electrode is negatively charged,
$(ii)$ the carriers of the current in the cell,and
$(iii)$ individual reaction at each electrode.