Fractional Distillation of Crude Oil Quiz
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Questions and Answers

What is the color of the flame when incomplete combustion of a hydrocarbon occurs?

  • Orange (correct)
  • Red
  • Blue
  • Yellow
  • Which gas is produced when carbon monoxide (CO) combines with oxygen in the air?

  • CO2 (correct)
  • O2
  • CH4
  • H2O
  • What is the primary reason carbon monoxide (CO) is considered a toxic gas?

  • It stops oxygen transport in the blood (correct)
  • It causes lung cancer
  • It leads to global warming
  • It pollutes the air
  • In which process do monomers with C=C bonds join together to form long polymer chains with C-C bonds?

    <p>Polymerization</p> Signup and view all the answers

    What is the primary effect of increased levels of CO2 in the atmosphere?

    <p>Enhanced greenhouse effect</p> Signup and view all the answers

    Which double bond in an alkene molecule is broken during the polymerization process?

    <p>$C=C$</p> Signup and view all the answers

    Which type of molecules have only C-C single bonds?

    <p>Saturated molecules</p> Signup and view all the answers

    What is the general formula for alkanes?

    <p>CnH2n+2</p> Signup and view all the answers

    Which type of molecules have a C=C double bond?

    <p>Unsaturated molecules</p> Signup and view all the answers

    What does a covalent bond involve?

    <p>Sharing of a pair of electrons between atoms</p> Signup and view all the answers

    Which type of molecules are fully soluble in water?

    <p>Methanol and ethanol</p> Signup and view all the answers

    How do the melting and boiling points change as the number of carbon atoms in a molecule increases?

    <p>They increase</p> Signup and view all the answers

    What physical property determines the boiling point of a molecule?

    <p>Chemical structure</p> Signup and view all the answers

    In the fractionating column during fractional distillation, where do the smallest molecules condense?

    <p>At the top</p> Signup and view all the answers

    What is the purpose of the cracking process in refining crude oil?

    <p>To break down large, less useful molecules into smaller, more useful ones</p> Signup and view all the answers

    Which type of respiration is involved in the process of fermentation?

    <p>Anaerobic respiration</p> Signup and view all the answers

    How do bigger molecules behave in terms of vaporization during fractional distillation?

    <p>Harder to vaporize due to stronger attraction between molecules</p> Signup and view all the answers

    Which process is used to obtain methanol from natural gas?

    <p>Three-step process</p> Signup and view all the answers

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