Introduction to Spectroscopy
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Questions and Answers

What is the main purpose of spectroscopy?

  • To study the interaction of electromagnetic radiation with atoms or molecules (correct)
  • To calculate the energy of photons
  • To measure the speed of light in different mediums
  • To determine the mass of atoms

What is the range of wavenumber for most organic molecules in IR spectroscopy?

  • 2000 - 10,000 cm⁻¹
  • 6000 - 12,000 cm⁻¹
  • 625 - 4000 cm⁻¹ (correct)
  • 100 - 500 cm⁻¹

What does an IR spectrum plot?

  • Wavelength against frequency
  • Energy of photons against wavelength
  • Frequency against speed of light
  • Transmittance (%T) against wavenumber (correct)

What do different chemical bonds have in IR spectroscopy?

<p>Different vibrational frequencies (D)</p> Signup and view all the answers

What is the dual behavior of electromagnetic radiation (emr)?

<p>Particle nature composed of photons with specific quantum of energy and wave nature propagate as waves at a speed of light (B)</p> Signup and view all the answers

What is the range of wavenumber for most organic molecules in IR spectroscopy?

<p>625 - 4000 cm-1 (B)</p> Signup and view all the answers

What is the dual behavior of electromagnetic radiation (emr)?

<p>Particle nature composed of photons with specific quantum of energy and wave nature (D)</p> Signup and view all the answers

What does an IR spectrum plot?

<p>Transmittance (%T) against wavenumber (B)</p> Signup and view all the answers

What is the speed of light in emr?

<p>At a speed of light (C)</p> Signup and view all the answers

What is the main purpose of IR spectroscopy?

<p>Identification of functional groups present in organic compounds (B)</p> Signup and view all the answers

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