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      Question

      The co-ordination number of a metal in co-ordination

      compounds is the:
      A same as secondary valency Correct Answer Incorrect Answer
      B sum of primary and secondary valencies Correct Answer Incorrect Answer
      C same as primary valency Correct Answer Incorrect Answer
      D difference between secondary and primary valencies Correct Answer Incorrect Answer

      Solution

      The coordination number of a metal in a coordination compound is the number of donor atoms attached to the metal center. A donor atom is an atom or molecule that can donate a pair of electrons to the metal ion to form a coordination bond.

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