The electrode reaction that takes place at the anode of a $CH_4-O_2$ fuel cell is?

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.

Select the false statement from the following regarding an electrochemical cell.

Which of the following statements is correct regarding the cathode of an electrochemical cell?

What are the common uses of a dry cell?

Identify which of the following cell reactions is spontaneous under standard state conditions.