Coordination Compounds in Inorganic Chemistry
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Questions and Answers

According to Werner's theory of coordination compounds, what does the term 'secondary valence' refer to?

  • The coordination number of the coordination compound
  • The oxidation number of the central atom
  • The number of isomers present in the coordination compound
  • The number of ligands bound directly to the metal ion (correct)

    • In a series of cobalt(III) chloride compounds with ammonia, why did some chloride ions precipitate as AgCl while others did not?

  • There was a difference in the number of ammonia molecules bound to cobalt in each compound
  • The primary valences were different for each compound
  • The secondary valences were different for each compound (correct)
  • The coordination number of cobalt was different in each compound

    • What term is used to describe the atoms within square brackets in the chemical formulas of coordination compounds according to Werner's theory?

  • Central atoms
  • Ligands
  • Coordination spheres
  • Coordination entities (correct)

    • What postulate of Werner's theory explains why some groups (ligands) remain bonded to the metal ion during a reaction?

    <p>Secondary valence postulate</p> Signup and view all the answers

    How did Werner differentiate between primary and secondary valences in coordination compounds?

    <p>By noting which groups remain bonded directly to the metal ion</p> Signup and view all the answers

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