Question

Petrol consists of hydrocarbons majorly from ${\text{C}}_{\text{12}}{\text{H}}_{\text{26}}$ to ${\text{C}}_{\text{15}}{\text{H}}_{\text{32}}$.
A.True
B.False

Answer 1

Hint: We know that the compounds that contain only carbon and hydrogen are known as hydrocarbons. The major constituents of petroleum and natural gas are hydrocarbons.

Complete step by step answer:
Petrol is also known as gasoline or gasoline. Petrol is a refined product of petroleum. Petrol is a mixture of hydrocarbons, additives and blending agents. The composition of petrol depends on various factors like the crude oil used, availability of refinery process, product specifications, etc.
Petrol is volatile and flammable liquid in nature. Petrol is mainly used as a fuel for internal combustion engines.
The basic chemical formula for petrol is ${\text{C}}_n{\text{H}}_{2n+2}$, where n is any integer. Thus, the chemical formula for petrol is variable.
The major constituent of petrol is lower hydrocarbons from $\text{C}{\text{H}}_{\text{4}}$ to ${\text{C}}_{\text{3}}{\text{H}}_{\text{8}}$. In minor quantities, petrol consists of hydrocarbons from ${\text{C}}_{\text{12}}{\text{H}}_{\text{26}}$ to ${\text{C}}_{\text{15}}{\text{H}}_{\text{32}}$.
Thus, the statement ‘petrol consists of hydrocarbons majorly from ${\text{C}}_{\text{12}}{\text{H}}_{\text{26}}$ to ${\text{C}}_{\text{15}}{\text{H}}_{\text{32}}$’ is false.

Note:
Petrol is mainly used as a transportation fuel and has many uses in cars, recreation vehicles, recreational boats, light trucks, motorcycles, construction tools, small aircrafts, sport utility vehicles, electricity generators, equipment used in farms, forests, etc.
The fuels produced by decomposition of plants and animals are known as fossil fuels. Petrol is a kind of fossil fuel. The fossil fuels on burning get oxidized to carbon dioxide and water and produce significant amounts of energy per unit mass. Formation of petrol takes over millions of years. It cannot be replenished. Thus, petrol is a non-renewable resource of energy.