The organic compound used as antiknock agent in petroleum is____________?
Correct answer: A. (C2H5 )4Pb
- A. (C2H5 )4Pb
- B. TNT
- C. CH MgBr3
- D. C2H5 )2Hg
Explanation
Tetraethyl lead, (C2H5)4Pb, was added to petrol as an antiknock agent because it reduced premature ignition and engine knocking. TNT is an explosive, while the mercury compound is not the standard petrol antiknock additive. Students may choose TNT because it is a well-known organic compound, but its explosive nature does not make it an antiknock agent.
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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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