Which of the following is correct about the "octane number"?
Correct answer: C. Higher the octane number, lower the knocking.
- A. Higher the octane number, higher will be the knocking.
- B. Higher the octane number, the efficiency of fuel will be lower.
- C. Higher the octane number, lower the knocking.
- D. Lower the octane number, lower the knocking.
Explanation
Higher octane numbers in gasoline indicate that the fuel is more resistant to knocking, which is a type of uncontrolled combustion that can occur in spark-ignition engines. Knocking can cause engine damage and reduce performance, so it's important to use fuels with the appropriate octane rating for your engine.
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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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