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MHT CET202124 Sep 2021Morning ShiftChemistryCoordination CompoundsActual

What is effective atomic number of Pt in [ Pt ( NH ₃ )₄ ]²⁺ ? (Given atomic number of Pt =78 )

Options

  1. A76
  2. B84
  3. C72
  4. D86

Correct answer

B. 84

Step-by-step solution

[ Pt ( NH ₃ )₄ ]²⁺ Pt ²⁺ array |l|l|l|l|l|l| Complex & Metal & array l Atomic number of metal Z array & array l Number of electrons lost by metal X array & array l Number of electrons from ligands Y array & EAN = Z-X + Y [ Pt ( NH ₃ )₄ ]²⁺ & Pt & 78 & 2 & 4 2=8 & 78-2+8=84 array

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