Question

In the electrochemical cell whose overall reaction is represented by the following equation, the negative electrode is?

1) Cu
2) Cu⁽²⁺⁾
3) Zn
4) Zn⁽²⁺⁾

Answer 1

In the given electrochemical cell, the negative electrode where oxidation occurs is the zinc solid (Zn(s)), making it the anode.

Step-by-step explanation:

In the electrochemical cell, the negative electrode is where oxidation occurs. The given reaction is Zn(s) → Zn²+ (aq) + 2e-, indicating that zinc metal is being oxidized to zinc ions.

Thus, the negative electrode, also known as the anode, is the Zn(s) or zinc solid. The zinc anode diminishes as the cell operates due to the loss of zinc metal to form Zn²+ ions.