Inductive and Mesomeric Effects Quiz
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Questions and Answers

What does 'cis' mean in the context of functional groups?

  • On opposite sides of the plane
  • Treat multiple bonds as one bond
  • On the same side of the plane (correct)
  • Assign priority based on atomic number

    • What is the main purpose of the Cahn-Ingold-Prelog (CIP) rules?

  • Describe pi bond resonance
  • Assign priorities to substituents around a chiral center (correct)
  • Determine E/Z configuration for alkenes
  • Treat isotopes as single bonds

    • In the E/Z nomenclature for alkenes, what does 'E' stand for?

  • Opposite (correct)
  • Endo
  • Entgegen
  • External

    • How are priorities assigned to substituents around a chiral carbon atom?

    <p>Based on atomic number</p> Signup and view all the answers

    What is the purpose of the E/Z nomenclature in organic chemistry?

    <p>Describing spatial arrangement around double bonds</p> Signup and view all the answers

    How should multiple bonds or isotopes be treated when assigning priorities in CIP rules?

    <p>As single bonds to the same atom</p> Signup and view all the answers

    Which term describes substituents on opposing sides of a plane?

    <p>'Trans'</p> Signup and view all the answers

    When there's a tie at the first atom in CIP rules, what should be done next?

    <p>Proceed along the substituent chains until a difference is found</p> Signup and view all the answers

    What does 'Z' stand for in E/Z nomenclature for alkenes?

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

    Which term describes stereoisomers that are not mirror images of each other?

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

    What term is used for chiral molecules that rotate plane-polarized light in either the left or right direction?

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

    What do meso compounds refer to in stereochemistry?

    <p>Optically inactive compounds</p> Signup and view all the answers

    In which aspect do diastereomers differ from enantiomers?

    <p>Physical properties</p> Signup and view all the answers

    What characterizes diastereomers regarding their spatial arrangement?

    <p>Have different spatial arrangements</p> Signup and view all the answers

    'Enantio' means ____ and 'morph' means ____.

    <p>Opposite, form</p> Signup and view all the answers

    'Diastereomerism' arises when a molecule has _____ and the spatial arrangement of substituents differs for at least one pair of stereoisomers.

    <p>Two or more chiral centers</p> Signup and view all the answers

    'Meso compounds' are known for being _____ even though they contain chiral centers.

    <p>Optically active</p> Signup and view all the answers

    'Diastereomers' have distinct physical properties like _____ compared to enantiomers.

    <p>'Different melting points'</p> Signup and view all the answers

    'Meso compounds' are unique among chiral molecules because they have _____.

    <p>'No chiral centers'</p> Signup and view all the answers

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