Question

1. Combustion of a substance is a/an
(a) reduction reaction
(c) displacement reaction
(b) oxidation reaction
(d) decomposition reaction​

Answer 1

$\mathfrak{\bf{\underline{\underline{ANSWER\ :}}}}$

${\dag} \: {\underline{\boxed{\sf{\purple{ σхídαtíσn \ rєαctíσn }}}}}$

Combustion is an oxidation reaction. For the reaction to take place, a fuel and an oxidant should be there. Substances undergoing the combustion are known as fuels whereas in burning oxygen combines with another molecule to produce an oxide.

Answer 2

Combustion of a substance is an OXIDATION REACTION.