Author Question: The complex ions of Zn2+ are all colorless. The most likely explanation for this is: (Read 167 times)

chandani · **on:** Mar 21, 2021

Question 1

The complex ion NiCl₄^2– is tetrahedral. The number of unpaired electrons in the complex is:

◦ 0
◦ 1
◦ 2
◦ 3
◦ 4

Question 2

The complex ions of Zn²⁺ are all colorless. The most likely explanation for this is:

◦ Zn²⁺ is paramagnetic.
◦ Zn²⁺ exhibits “d orbital” splittings in its complexes such that they absorb all wavelengths in the visible region.
◦ Since Zn²⁺ is a d¹⁰ ion, it does not absorb visible light even though the “d orbital” splittings are correct for absorbing visible wavelengths.
◦ Zn²⁺ is not a transition metal ion.
◦ None of these are correct.

kjohnson · **Reply #1 on:** Mar 21, 2021

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