Coordination Compounds 2 Question 16

####18. The difference in the number of unpaired electrons of a metal ion in its high-spin and low-spin octahedral complexes is two. The metal ion is

(a) $Mn^{2+}$

(b) $Fe^{2+}$

(c) $Ni^{2+}$

(d) $Co^{2+}$

(2019 Main, 10 Jan II)

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Answer:

Correct Answer: 18. (d)

Solution:

  1. The difference in the number of unpaired electrons of different metal ions in their high spin and low spin octahedral complexes are given in the table below:



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