Organic Molecules and Functional Groups
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Questions and Answers

What is the functional group of an alkane?

  • Hydrogen substituent (correct)
  • Carbonyl group
  • Carbon-carbon double bond
  • Alkyl group
  • What is a primary carbon?

  • Directly attached to four other carbons
  • Directly attached to one other carbon (correct)
  • Directly attached to three other carbons
  • Directly attached to two other carbons
  • What is the most oxidized state of carbon?

  • Carbon-carbon double bond
  • Carbonyl group
  • Alkane
  • Carbon-carbon triple bond (correct)
  • Which notation helps to focus attention on the functional group transformation without being distracted by the unaffected parts of the molecule?

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

    What is a characteristic reaction of alkanes?

    <p>Reacting with halogens to yield alkyl halides</p> Signup and view all the answers

    What is a functional group in an organic molecule?

    <p>A group of atoms that specifies the physical and chemical properties of an organic molecule</p> Signup and view all the answers

    What are aliphatic hydrocarbons?

    <p>Hydrocarbons containing only carbon and hydrogen with single, double, or triple bonds</p> Signup and view all the answers

    Which class of hydrocarbons consists of compounds with all single bonds?

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

    What is the most important aromatic hydrocarbon?

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

    Which type of hydrocarbons have properties much different from alkanes, alkenes, and alkynes?

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

    A functional group is the atom or a group of atoms that determines the physical properties of an organic molecule.

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

    Aromatic hydrocarbons were typically obtained by chemical treatment of unpleasant-smelling plant extracts.

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

    Alkenes contain a carbon–carbon triple bond.

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

    Arenes have properties similar to alkanes, alkenes, and alkynes.

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

    The most important aromatic hydrocarbon is methane.

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

    Alkanes react with halogens to yield alkyl halides.

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

    The carbon-carbon double bond is a functional group in alkenes.

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

    Alkyl groups are classified as primary, secondary, or quaternary according to the degree of substitution of the carbon at the potential point of attachment.

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

    Alkynes contain carbon in its most reduced state.

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

    An arene is appropriately considered to have the ring in its entirety as the functional group.

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

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