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 (D)</p> Signup and view all the answers

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

<p>Ethane (D)</p> Signup and view all the answers

What is the general formula for an alkyl group?

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

What is an alkyl group a part of?

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

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

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

How many alkyl groups are mentioned in the passage?

<p>9 (D)</p> Signup and view all the answers

What type of group is described in the passage?

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

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

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

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

<p>200-300°C (B)</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 (D)</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 (B)</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 (D)</p> Signup and view all the answers

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

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

What type of alkanes undergo halogenation?

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

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

<p>Halogenation (A)</p> Signup and view all the answers

What can initiate the reaction of chlorination or bromination?

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

What can influence the rate of halogenation?

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

What type of reaction may occur with alkanes?

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

What is the product of burning alkanes in excess air?

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

What is the characteristic of alkanes in terms of combustion?

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

What is a common observation when alkanes react with air?

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

What is the byproduct of alkane combustion in air?

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

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