Consider the following equation of the chemical reaction of a metal M:

    \[\mathbf{4M}\text{ }+\text{ }\mathbf{3}{{\mathbf{O}}_{\mathbf{2}}}\to \text{ }\mathbf{2}{{\mathbf{M}}_{\mathbf{2}}}{{\mathbf{O}}_{\mathbf{3}}}\]


The equation represents:
(a) Combination reaction as well as reduction reaction
(b) Decomposition reaction as well as oxidation reaction
(c) Oxidation reaction as well as displacement reaction
(d) Combination reaction as well as oxidation reaction
Consider the following equation of the chemical reaction of a metal M:

    \[\mathbf{4M}\text{ }+\text{ }\mathbf{3}{{\mathbf{O}}_{\mathbf{2}}}\to \text{ }\mathbf{2}{{\mathbf{M}}_{\mathbf{2}}}{{\mathbf{O}}_{\mathbf{3}}}\]


The equation represents:
(a) Combination reaction as well as reduction reaction
(b) Decomposition reaction as well as oxidation reaction
(c) Oxidation reaction as well as displacement reaction
(d) Combination reaction as well as oxidation reaction

Option (d) is the correct response. Metal combines with oxygen to produce a single compound in the above reaction. This is a type of combination reaction, and since oxygen is added, thus it is an oxidation reaction as well.