Which of the following statement is correct regarding a cell of zinc and copper?

Zinc acts as an anode and copper as a cathode.

The correct statement regarding a cell of zinc and copper is: 1. Zinc acts as an anode, and copper acts as a cathode.

In an electrochemical cell, the anode is the electrode where oxidation occurs, and it loses electrons, leading to the formation of metal cations. In this case, zinc (Zn) undergoes oxidation and loses electrons, forming zinc ions \(Zn^{2+}\). Therefore, zinc acts as the anode.

Conversely, the cathode is the electrode where reduction occurs, and it gains electrons, leading to the reduction of metal cations to form solid metal. In this case, copper ions \(Cu^{2+}\) gain electrons and are reduced to form solid copper (Cu). Hence, copper acts as the cathode.

Option 2 is incorrect because the roles of zinc and copper as anode and cathode are reversed.

Option 3 is incorrect because the standard reduction potential of copper (\(E^\circ_{\text{Cu}}\)) is greater than that of zinc (\(E^\circ_{\text{Zn}}\)). The standard reduction potential of copper is positive, while that of zinc is negative.

Option 4 is incorrect because the flow of electrons is from zinc (anode) to copper (cathode). Electrons flow in the external circuit from the anode to the cathode, following the direction of the cell reaction.