Question

what is the difference between oxide,monoxide,dioxode.explain in brief.

Answer 1

oxide is a name for a simple compound of oxygen
monoxide containing 1 atom of oxygen
dioxide containing 2 atom of oxygen

Answer 2

All of these terms are referred to the oxygen molecule reacting with any element.
 We know that the atom of oxygen is divalent i.e it's valency is -2 as it's electronegative.
Oxide - Oxygen when reacting with any electropositive divalent atom so that the charge becomes equal in the bonding.

Monoxide - Oxygen when reacting with any neutropositive tetravalent atom.

Dioxide - When two divalent atoms of oxygen react with a tetravalent atom.