Ketone Structure and Importance Quiz
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Questions and Answers

What is the general structure of a ketone?

  • R−C(=C)−R'
  • R−C(OH)−R'
  • R−C(=O)−OH
  • R−C(=O)−R' (correct)
  • What functional group is present in ketones?

  • Carboxyl group −COOH
  • Carbonyl group −C(=O)− (correct)
  • Hydroxyl group −OH
  • Aldehyde group −CHO
  • What is the simplest ketone?

  • Ethanol C2H5OH
  • Acetone (CH3)2CO (correct)
  • Methanol CH3OH
  • Formaldehyde CH2O
  • How are ketone names derived according to IUPAC nomenclature?

    <p>By changing the suffix -ane of the parent alkane to -anone</p> Signup and view all the answers

    How are traditional nonsystematic names of ketones represented in IUPAC nomenclature?

    <p>Retained IUPAC names</p> Signup and view all the answers

    Study Notes

    Structure and Functional Groups

    • Ketones have a carbonyl group (C=O) flanked by carbon atoms on both sides.
    • The carbonyl carbon is bonded to two other carbon atoms, differentiating ketones from aldehydes.

    Simplest Ketone

    • Acetone, also known as propanone, is the simplest ketone with the chemical formula C3H6O.

    Nomenclature

    • In IUPAC nomenclature, ketone names are derived from the longest carbon chain that contains the carbonyl group, with the suffix “-one” indicating the presence of a ketone.
    • For example, the name of a ketone with five carbon atoms is "pentan-2-one," indicating the position of the carbonyl group.

    Traditional Names

    • Traditional nonsystematic names of ketones often use common names based on their structure, such as “acetone” for propanone.
    • These names may refer to specific groups linked to the carbon atoms adjacent to the carbonyl, especially in simpler ketones.

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    Description

    Test your knowledge of ketones in organic chemistry, their structure and significance in biology and industry. Learn about the carbonyl group and examples of important ketones like sugars and steroids.

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