Keggin Structures and Heteropoly Acids Quiz
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Questions and Answers

What is the general formula of α-Keggin anions?

  • [XM12O30]n−
  • [XM14O40]n−
  • [XM10O40]n−
  • [XM12O40]n− (correct)

    • Which atoms are most commonly used as the heteroatom in Keggin structure?

  • Sulfur, Nitrogen, Phosphorus
  • Carbon, Hydrogen, Oxygen
  • Phosphorus, Silicon, Boron (correct)
  • Hydrogen, Oxygen, Nitrogen

    • Who first reported the α-Keggin anion, ammonium phosphomolybdate?

  • Berzelius (correct)
  • Blomstrand
  • Copaux
  • Alfred Werner

    • What is the most stable structure of polyoxometalate catalysts?

    <p>Keggin structure</p> Signup and view all the answers

    Who attempted to explain the structure of silicotungstic acid using the coordination compounds ideas of Copaux?

    <p>Alfred Werner</p> Signup and view all the answers

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