Chemistry: Chemical reactions

Question

Which of the following unbalanced chemical reactions are correctly matched with their reaction types?

I. N2(g) + H2(g) → NH3(g): Combination Reaction

II. H2O2(l) → H2O(l) + O2(g): Decomposition Reaction

III. CH4(g) + O2(g) → CO2(g) + H2O(g): Single-Replacement Reaction

I am pretty sure that it is one and 2 but I just want to make sure :)

Answer 1

Yes , it is I & II

III is a combustion reaction.