Gasoline is a mixture of?
Correct answer: D. C7 - C9 alkanes
- A. C3 - C5 alkanes
- B. C15 - C20 alkanes
- C. C11 - C15 alkanes
- D. C7 - C9 alkanes
Explanation
C7-C9 alkanes: This range of alkanes is the ideal range for use in gasoline. They are long enough to be stable and evaporate at a rate that is ideal for both spark-ignited and compression-ignited engines.
This question appeared on the NUMS 2018 paper, which you can sit online with every answer explained.
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About Alkanes
Alkanes are saturated hydrocarbons containing only carbon-carbon and carbon-hydrogen single bonds, with the general formula CnH2n+2 for open chains. Their structure, isomerism, IUPAC nomenclature, physical properties, combustion, free-radical halogenation and conformations are covered, including the difference between substitution in alkanes and addition in unsaturated hydrocarbons.
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1,091 free Chemistry of Hydrocarbons MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
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