Introduction to Organic Chemistry
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Questions and Answers

What is the primary focus of organic chemistry?

  • The study of inorganic compounds
  • The study of molecular structures in plants
  • The study of chemical reactions in living organisms
  • The study of carbon compounds (correct)

    • What percentage of known molecules are classified as organic compounds?

  • 20%
  • 50%
  • 90%
  • 80% (correct)

    • What is an example of an organic molecule found in food?

  • Sucrose
  • Caffeine
  • Starch
  • All of the above (correct)

    • What is the purpose of using short-hand techniques in organic chemistry?

    <p>To show the locations of electrons and bonds in molecules</p> Signup and view all the answers

    What is assumed to be present at the intersection of two covalent bonds in a line diagram?

    <p>A carbon atom with enough hydrogen atoms to make it tetravalent</p> Signup and view all the answers

    What is the molecular formula of ethanol?

    <p>C2H6O</p> Signup and view all the answers

    What is the predicted shape of a molecule with four regions of electron density around the central atom?

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

    What is the purpose of the dot-line-wedge symbolism in depicting three-dimensional structures?

    <p>To represent bonds in different directions relative to the plane of the paper</p> Signup and view all the answers

    What is the effect of lone pairs of electrons on bond angles in VSEPR theory?

    <p>They decrease the bond angles</p> Signup and view all the answers

    How many types of hybridization are needed to be considered in organic molecules?

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

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