Find the oxidation half reaction?

Question

Given the following net ionic equation:

2 Al_(s) + 3 Zn²⁺_(aq)     →      2 Al³⁺ _(aq) + 3 Zn_(s)

The reaction that represent the oxidation half-reaction is:

Question 2 options:

a.	Zn(s) → Zn2+(aq) + 2e−
b.	Zn2+(aq) + 2e−  →  Zn(s)
c.	Al(s)→ Al3+(aq) + 3 e−
d.	Al3+(aq) + 3 e− → Al(s)

Answer 1

Oxidation is loss of electrons, so since Al(s) goes from zero to Al3+, this would be the oxidation half-reaction.

So, the correct option would be (c), Al(s) ===> Al³⁺ + 3e^-