Question

Consider the reaction below.

2l⁻ (aq)+Cl₂(g) → 2Cl⁻ (aq) +I₂ (aq)
Which half reaction correctly describes the reduction that is taking place?

A) I⁻(aq) → I₂(aq) + 2e⁻
B) Cl₂(g) + 2e⁻ → 2Cl⁻(aq)
C) I₂(aq) + 2e⁻ → 2I⁻(aq)
D) Cl⁻(aq) → Cl₂(g) + 2e⁻

Answer 1

Option A) I⁻(aq) → I₂(aq) + 2e⁻ correctly describes the reduction taking place.

Step-by-step explanation:

The reduction half reaction that correctly describes the reduction taking place in the given reaction is option A) I⁻(aq) → I₂(aq) + 2e⁻.

In the given reaction, 2I⁻ ions are being oxidized to form I₂ molecules by gaining 2 electrons. Therefore, the reduction half reaction represents the reduction of I⁻ ions to form I₂ molecules.

The other options represent either oxidation reactions or incorrect reduction reactions.