Answer: The correct answer is Option 1.
Explanation:
Combustion reaction is defined as the reaction in which a hydrocarbon reacts with oxygen molecule to produce carbon dioxide and water molecule as a product.
[tex]\text{hydrocarbon}+O_2\rightarrow CO_2+H_2O[/tex]
Decomposition reaction is defined as the reaction in which a large substance breaks down into two or more smaller substances.
[tex]AB\rightarrow A+B[/tex]
Oxidation reaction is defined as the reaction in which a substance gets oxidized by gaining oxygen or when they react with oxygen atoms.
From the given options:
Wood is totally composed of hydrocarbon and its burning requires oxygen molecule. So, burning of wood is considered as combustion reaction.
Hence, the correct answer is Option 1.
