Question

"4Na (s) + O2 (g) ⎯⎯→ 2Na2O (s)"
Is this an example of redox reaction

Answer 1

yes, this is an redox reaction.

Explanation:

In the reaction :

4Na (s) + O2 (g) ⎯⎯→ 2Na2O (s)

oxidised substance- Na

reduced subs. - O2

Na is an element ; and O2 is oxygen they from an oxide.

if one reactant get oxidised while the other get reduced during a reaction, such reaction is called redox reaction. And also known as oxidation-reduction reaction.

☆In other words it is a chemical process in which a substance gains hydrogen or loses oxygen.

Answer 2

Answer:

4Na(s) + O2(g) → 2Na2O(s)

Oxidized substance – Na

Reduced substance – O2

In the first equation sodium (Na) is getting oxidized with the addition of Oxygen (O2).