Polymorphism and Crystal Structures
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Questions and Answers

Which substance is an example of polymorphism?

  • Graphite
  • Titanium dioxide (correct)
  • Diamond
  • Sulphur

    • What physical properties can be different between polymorphs?

  • Color
  • Melting points
  • Solubilities
  • All of the above (correct)

    • Why must the crystal form be stipulated when patenting a new active?

  • To ensure legal protection (correct)
  • To guarantee monopoly
  • To prevent competitors from finding unpatented forms
  • To control polymorphism therapy

    • Which substance has different crystal forms of orthorhombic and monoclinic?

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

    What is the patent in dispute for Ranitidine HCl?

    <p>Form 2 version</p> Signup and view all the answers

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