Question

Which of the following reactions would be classified as oxidation-reduction
2Na(s)+Cl2—2NaCl(s)
Na(s)+CuCl(aq)—NaCl(aq)+Cu(s)
NaCN(aq)+CuCl(aq)—NaCl(aq)+CuCN(s)

Answer 1

The correct answer is options 1 and 2.

Explanation:

• Both 2Na(s) + Cl₂(g) → 2NaCl(s)  & Na(s) + CuCl(aq) → NaCl(aq) + Cu(s) are classified as oxidation-reduction reactions.

• These reactions in other words are called Redox reactions.

• Changes in oxidation refers to such reactions while the other chemical in the reaction gets reduced.

• Transference of electrons also takes place in these.

• These reactions are used in metal industry to obtain unique materials.