Spectrophotometry and UV-VIS Absorption Quiz
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Questions and Answers

Which type of compounds are capable of absorbing radiation in the UV and VIS?

  • Compounds without a chromophore group
  • Organic compounds without a chromophore group
  • Inorganic compounds
  • Metal complexes (correct)

    • What is a chromophore?

  • A region in a molecule where the energy difference between two molecular orbitals falls outside the range of the visible spectrum
  • A molecule that reflects certain wavelengths of visible light
  • A region in a molecule where the energy difference between two molecular orbitals falls within the range of the visible spectrum (correct)
  • A molecule that transmits certain wavelengths of visible light

    • What happens when a molecule absorbs certain wavelengths of visible light?

  • The molecule reflects light of the absorbed wavelengths
  • The molecule undergoes a change in energy associated with electron transitions (correct)
  • The molecule becomes colorless
  • The molecule emits light of the absorbed wavelengths

    • What is the Lambert-Beer Law?

    <p>A law stating that the amount of light emerging from a sample is diminished by the amount of absorbing material in its path</p> Signup and view all the answers

    What type of compounds have a specific absorption spectrum for isoprene?

    <p>Organic compounds without a chromophore group</p> Signup and view all the answers

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