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Coordination Compounds — Chemistry STD 12 Science — Question

Bihar BoardEnglish MediumSTD 12 ScienceChemistryCoordination Compounds1 Mark
MCQ
Barium ions, CN− and Co2+ form an ionic complex. If that complex is supposed to be 75% ionised in water with vant Hoff factor 'i' equal to four, then the coordination number of Co2+ in the complex can be.
  • A
    Six
  • B
    Five
  • C
    Four
  • D
    Six and Four both
✓

Answer

  1. Six

Explanation:

Complex formed is Bq2​[CO(CN)6​] in which oxidation of CO is (2+) and CN of CO is six.

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