Here we have to choose the best statement, among the given, in the chemical reaction between the substance sodium (Na) and oxygen (O₂) to form Na₂O.
The suitable statement is sodium oxide is created by the B. chemical reaction.
The reaction between Na and O₂ is 4Na + O₂ = 2Na₂O.
The compound Na₂O is entirely is a new compound and not generated by the rearrangement of the reactant. Here the sodium and oxygen is destroyed and forms Na₂O.
There is no separate atoms in Na₂O it is a compound made by the two atoms Na and O₂.
In a mixture of the three substances sodium oxide can be separated from Na and O₂ but it depends upon the physical property of the reactant and product. If the reactant and product both are in gaseous state they cannot be separated by any physical methods.
