Question

When a SHE is connected to a Zn²⁺/Zn electrode, the electrons flow from ______ electrode to the ______ electrode and the current flows in the ______ direction.

Answer 1

When a SHE is connected to a Zn²⁺/Zn electrode, the electrons flow from zinc electrode to the hydrogen electrode and the current flows in the opposite direction.

Explanation:

Zinc has a more negative electrode potential than SHE, so it acts as the anode (gets oxidised), releasing electrons that flow toward the SHE (cathode). Current flows in the opposite direction to electron flow.