Which of the following are true for the complex [Ni(CN)4]2– ion:A)Hybridization of Ni2+ ion is dsp2B) Shape of the complex ion is planar squareC)Magnetic moment of the complex is 2.83 BMD) The complex is an example for a high spin complex

The oxidation state of Ni in the given ion is +2, therefore giving a 3d8 configuration, and since CN is a strong field ligand therefore pairing happens; thus dsp2 hybridization and square planar.Since no unpaired electrons thus n in n(n+2) BM is zero, thus magnetic moment is 2 BM.Hence, the correct option is option (A) A and B.

Which of the following are true for the complex [Ni(CN)4]2– ion:A)Hybridization of Ni2+ ion is dsp2B) Shape of the complex ion is planar squareC)Magnetic moment of the complex is 2.83 BMD) The complex is an example for a high spin complex

The oxidation state of Ni in the given ion is +2, therefore giving a 3d8 configuration, and since CN is a strong field ligand therefore pairing happens; thus dsp2 hybridization and square planar.Since no unpaired electrons thus n in n(n+2) BM is zero, thus magnetic moment is 2 BM.Hence, the correct option is option (A) A and B.

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Which of the following are true for the complex [Ni(CN)₄]^2– ion:
A)Hybridization of Ni²⁺ ion is dsp²
B) Shape of the complex ion is planar square
C)Magnetic moment of the complex is 2.83 BM
D) The complex is an example for a high spin complex

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C and D

B and D

A and B

A and C

answer is A.

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Detailed Solution

The oxidation state of Ni in the given ion is +2, therefore giving a 3d⁸ configuration, and since CN is a strong field ligand therefore pairing happens; thus dsp² hybridization and square planar.
Since no unpaired electrons thus n in $\sqrt{n (n + 2)} BM$ is zero, thus magnetic moment is $\sqrt{2} BM .$
Hence, the correct option is option (A) A and B.