Hydrocarbons in Natural Gas
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Questions and Answers

What is the percentage of ethane in natural gas?

  • 15%
  • 20%
  • 5%
  • 10% (correct)

    • What is the molecular formula of ethane?

  • CH3CH2
  • CH3CH3 (correct)
  • C2H4
  • CH3CH2CH3

    • What is the use of propane?

  • As a minor component of natural gas
  • As an industrial fuel, and in home heating and cooking (correct)
  • As a component of petrol
  • As a component of diesel

    • What is the molecular formula of propane?

    <p>CH3CH2CH3</p> Signup and view all the answers

    Which of the following is a minor component of natural gas?

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

    What is the general formula for an alkyl group?

    <p>CnH2n+1</p> Signup and view all the answers

    What is an alkyl group a part of?

    <p>A molecule</p> Signup and view all the answers

    What is the term for the naming system used in the above examples?

    <p>IUPAC nomenclature</p> Signup and view all the answers

    How many alkyl groups are mentioned in the passage?

    <p>9</p> Signup and view all the answers

    What type of group is described in the passage?

    <p>Alkyl group</p> Signup and view all the answers

    What is the catalyst used in the reduction of alkenes to form alkanes?

    <p>Finely divided nickel</p> Signup and view all the answers

    At what temperature range is the catalytic reduction of alkenes typically carried out?

    <p>200-300°C</p> Signup and view all the answers

    What is the name of the material on which nickel is supported in the catalytic reduction of alkenes?

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

    What is the reactant that is passed with the vapours of alkenes in the catalytic reduction reaction?

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

    What is the class of compounds that can be reduced to form alkanes using catalytic reduction?

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

    What is required to bring about chlorination and bromination of alkanes?

    <p>Light, heat, or catalysts</p> Signup and view all the answers

    What type of alkanes undergo halogenation?

    <p>Any type of alkanes</p> Signup and view all the answers

    What is the term for the reaction of alkanes with chlorine or bromine?

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

    What can initiate the reaction of chlorination or bromination?

    <p>Light or catalysts</p> Signup and view all the answers

    What can influence the rate of halogenation?

    <p>All of the above</p> Signup and view all the answers

    What type of reaction may occur with alkanes?

    <p>Free radical</p> Signup and view all the answers

    What is the product of burning alkanes in excess air?

    <p>CO2 and H2O</p> Signup and view all the answers

    What is the characteristic of alkanes in terms of combustion?

    <p>They readily burn in excess air</p> Signup and view all the answers

    What is a common observation when alkanes react with air?

    <p>They produce a flame</p> Signup and view all the answers

    What is the byproduct of alkane combustion in air?

    <p>Carbon dioxide and water</p> Signup and view all the answers

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