Match the reaction provided on the left with the correct

Question

Match the reaction provided on the left with the correct reaction classification/type on the right [NOTE the reaction equations are not balanced]. Reaction classification/types can be used more than once or not at all.

Options:

H₂CO₃(aq) --> H₂O_(l) + CO_2(g)

C₅H_10(l) + O_2(g) --> H₂O_(l) + CO_2(g)

Fe₂(SO₄)_3(aq) + KOH_(aq) --> K₂SO_4(aq) + Fe(OH)_3(s)

LiClO_3(s) --> LiCl_(s) +O_2(g)

1.Precipitation

2.Decomposition

3.Combination

4.Combustion