MHT CET · Chemistry · Coordination Compounds
Which among the following statements about \(\left[\mathrm{Ni}(\mathrm{CN})_4\right]^{2-}\) is NOT true?
- A In this electron are paired prior to hybridization
- B Oxidation state of \(\mathrm{Ni}\) is +6
- C Ni undergoes dsp \({ }^2\) hybridization
- D It is a square planar complex
Answer & Solution
Correct Answer
(B) Oxidation state of \(\mathrm{Ni}\) is +6
Step-by-step Solution
Detailed explanation
\(
\left[\mathrm{Ni}(\mathrm{CN})_4\right]^{2-} \Rightarrow \mathrm{Ni}^{2+}
\)
Oxidation state of \(\mathrm{Ni}\) is +2
- \(\mathrm{CN}^{-}\)is strong field ligand.
- Electrons are paired prior to hybridization.
\(
\mathrm{Ni}^{2+}[\mathrm{Ar}] 3 \mathrm{~d}^8
\)
- \(\mathrm{dsp}^2\) hybridization and square planar complex.
\left[\mathrm{Ni}(\mathrm{CN})_4\right]^{2-} \Rightarrow \mathrm{Ni}^{2+}
\)
Oxidation state of \(\mathrm{Ni}\) is +2
- \(\mathrm{CN}^{-}\)is strong field ligand.
- Electrons are paired prior to hybridization.
\(
\mathrm{Ni}^{2+}[\mathrm{Ar}] 3 \mathrm{~d}^8
\)
- \(\mathrm{dsp}^2\) hybridization and square planar complex.
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