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MHT CET2017ChemistryCoordination Compounds

Which of the following co-ordinate complexes is an exception to EAN rule? (Given At. Number Pt = 78, Fe = 26, Zn = 30, Cu = 29)

Options

  1. A[ P t ( N H 3 ) 6 ] 4 +
  2. B[ F e ( C N ) 6 ] − 4 	
  3. CZ n N H 3 4 2 +
  4. DC u N H 3 4 2 +

Correct answer

D. C u N H 3 4 2 +

Step-by-step solution

For C u N H 3 4 2 + , EAN = 29 − 2 + 4 ( 2 ) = 0 27 + 8 = 35

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