Organic Chemistry Nomenclature Rules Quiz
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Questions and Answers

In naming alkenes, what suffix is used to indicate the presence of a carbon-carbon double bond?

  • -ene (correct)
  • -ane
  • -ol
  • -yne

    • According to rule 2, what should be selected as the parent carbon chain when naming alkenes?

  • Chain with the lowest number of carbons
  • Chain with the most substituents
  • Shortest continuous chain of carbon atoms
  • Longest continuous chain of carbon atoms containing both double bond carbons (correct)

    • When numbering the parent carbon chain in alkenes, where should the numbering start from?

  • The end farthest from the double bond
  • The end closest to a methyl group
  • The end nearest to the double bond (correct)
  • The end nearest to a substituent

    • What suffix should be used in alkenes with more than one double bond?

    <p>-diene</p> Signup and view all the answers

    When naming unsubstituted cycloalkenes with only one double bond, is a number needed to locate the double bond?

    <p>No, it is assumed to be between carbons 1 and 2</p> Signup and view all the answers

    According to rule 7, how are the double-bonded carbon atoms numbered in substituted cycloalkenes with only one double bond?

    <p>To give the first substituent the lower number</p> Signup and view all the answers

    What is the general formula for alkanes?

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

    How should the parent chain be selected when naming hydrocarbons?

    <p>The longest continuous carbon chain</p> Signup and view all the answers

    What is the suffix used to name saturated hydrocarbons?

    <p>-ane</p> Signup and view all the answers

    According to IUPAC rules, how should alkyl groups be located and named?

    <p>Give the first encountered alkyl group the lowest possible number</p> Signup and view all the answers

    When there are multiple identical alkyl groups present in a molecule, how should they be indicated?

    <p>Use a numerical prefix (Di-, Tri-, Tetra-) and position numbers</p> Signup and view all the answers

    What is the simplest hydrocarbon known as?

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

    What determines the set used when 2 or more equivalent numbering sets exist in naming organic compounds?

    <p>The alphabetical priority among substituents</p> Signup and view all the answers

    When does a ring system containing fewer carbon atoms than an alkyl group attached to it get named as an alkane rather than as a cycloalkane?

    <p>When it is a small ring with less carbon atoms</p> Signup and view all the answers

    In naming alkyl halides, how are halogen atoms treated when they are substituents on a carbon chain?

    <p>As prefixes before the parent chain name</p> Signup and view all the answers

    How are halogen and alkyl substituents ranked in determining the numbering system for a carbon chain in alkyl halides?

    <p>Halogen atoms are given priority over alkyl groups</p> Signup and view all the answers

    What suffix is used to name alkenes in IUPAC nomenclature?

    <p>-ene</p> Signup and view all the answers

    When naming branched-chain alkenes and cycloalkenes, which rules can be used with some modifications?

    <p>Rules for naming alkanes and cycloalkanes</p> Signup and view all the answers

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