We used Pb(C2H5)4in the gasoline to reduce:
Correct answer: D. Knocking of engine
- A. Consumption of fuel
- B. Price of fuel
- C. The octane number of fueL
- D. Knocking of engine
Explanation
The addition of Pb(C2H5)4 in gasoline reduces knocking in the engine by increasing the octane number of fuel. Knocking is caused by premature combustion of fuel, which can damage the engine.
This question appeared on the ETEA MDCAT 2010 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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