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A petroleum product having a lower carbon limit of C1 and an upper carbon limit of C4 is known as :

  • A.Aviation fuel
  • B.Gasoline
  • C.Lubricating oil
  • D.Refinery gas

Answer: D

A product spanning C1 to C4 is refinery gas.

Refinery gas is the lightest fraction from crude oil distillation, made up of methane, ethane, propane and butane (one to four carbon atoms). Propane and butane are also liquefied as LPG.

Gasoline contains roughly C4/C5 to C12 hydrocarbons, aviation turbine fuel (kerosene) about C8 to C16, and lubricating oils much heavier molecules of about C20 and above.

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