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KCET2023ChemistryCoordination Compounds

Which of the following system in an octahedral complex has maximum unpaired electrons?

Options

  1. Ad^9 (high spin)
  2. Bd^6 (low spin)
  3. Cd^4 (low spin)
  4. Dd^7 (high spin)

Correct answer

D. d^7 (high spin)

Step-by-step solution

( array |c|c| & array c Unpaired electrons array array c d^4 (low spin) -16 array & 2 array c d^7 (high spin) -1 array & 3 array c d^9 (high spin) -1 array & 1 array ) d^7 (high spin) system has maximum unpaired electrons.

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