MHT CET · Chemistry · Coordination Compounds
What is the number of unpaired electrons of nickel observed in \(\left[\mathrm{Ni}(\mathrm{CN})_4\right]^{-2}\)
- A 6
- B 2
- C 4
- D zero
Answer & Solution
Correct Answer
(D) zero
Step-by-step Solution
Detailed explanation
\(\mathrm{Ni}^{+2}=[\mathrm{Ar}] 3 \mathrm{~d}^8\)
As \(\mathrm{CN}^{-}\)is a strong field ligand therefore passing of \(\mathrm{e}^{-} \mathrm{s}^{\text {takes }}\) place \(\mathrm{Ni}^{+2}=[\mathrm{Ar}]\)
As \(\mathrm{CN}^{-}\)is a strong field ligand therefore passing of \(\mathrm{e}^{-} \mathrm{s}^{\text {takes }}\) place \(\mathrm{Ni}^{+2}=[\mathrm{Ar}]\)
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