The reaction of H2 gas with oxygen gas to form water is an example of (a) combination reaction (b) redox reaction (c) exothermic reaction (d) all of these reactions
OptionD. The reaction is an example of oxidation of hydrogen. The redox reactions are the reaction in which one species is oxidized and another is reduced. Here, oxygen is reduced and hydrogen is getting oxidized, so this is a redox reaction.
