Tetraethyl lead is added to fuel to _?
Correct answer: D. Prevent knocking
- A. Decrease boiling point
- B. Prevent overheating
- C. Prevent fuel from freezing
- D. Prevent knocking
Explanation
Tetraethyllead was historically used as an anti-knock agent in gasoline. It increases the fuel's octane rating, which prevents premature ignition (knocking or pinging) in high-compression internal combustion engines.
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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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