Fuels, homologous series, alkanes, alkenes, alcohols, carboxylic acids, and polymers.
Fuels and crude oil
Crude oil is a mixture of hydrocarbons separated by fractional distillation (according to boiling point). Fractions (top → bottom): refinery gases, gasoline (petrol), naphtha, kerosene, diesel, fuel oil, bitumen. Complete combustion of a hydrocarbon gives ; incomplete combustion (limited oxygen) gives carbon monoxide and soot (carbon).
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