Question

the burning of fossil fuels results in which type of chemical reaction? A) decomposition b) single-replacement c) combustion d) synthesis

Answer 1

The burning of fossil fuels results in Combustion reaction.

Answer 2

Answer: The correct answer is Option c.

Step-by-step explanation: For the given type of reactions:

Decomposition reaction is a type of chemical reaction in which a a larger molecule breaks into two or more smaller molecules.

`AB\rightarrow A+B`

Single replacement reaction is a type of chemical reaction in which more reactive metal replaces the less reactive metal in a chemical reaction. The reactivity of the metals is studied with the help of reactivity table.

`A+BC\rightarrow AC+B`

Combustion reaction is a type of chemical reaction in which hydrocarbon in the presence of oxygen produces carbon dioxide and water.

`Hydrocarbon+O_2\rightarrow CO_2+H_2O`

Synthesis reaction is a type of chemical reaction in which two or more compounds combine to form a single large product.

`A+B\rightarrow AB`

All the fossil fuels are organic compounds and hence are considered as hydrocarbons. So, the burning of fossil fuels is a type of combustion reaction.

Hence, the correct answer is option c.