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 (A)</p> Signup and view all the answers

What is the patent in dispute for Ranitidine HCl?

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

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