🧪 Chemistry · Coordination Compounds · NEET & JEE

The hybridisation of the central metal in the square planar [Ni(CN)₄]^2- is:

Answer: dsp².

A sp³
B sp³d
C dsp²
D d²sp³

Correct answer: C. dsp²

Explanation: Ni²⁺ (d⁸) with strong-field CN^- pairs its electrons, freeing a 3d orbital; dsp² hybridisation gives a diamagnetic square planar complex.

The three common coordination geometries: octahedral (6 ligands), tetrahedral (4 ligands), and square planar (4 ligands in one plane).

Concept context

Study of compounds where a central metal atom is bonded to surrounding ligands. Covers nomenclature, types of isomerism, bonding theories (VBT, CFT), and applications in medicine, photography, and industry.

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The hybridisation of the central metal in the square planar [Ni(CN)4]2- is:

Concept context

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The hybridisation of the central metal in the square planar [Ni(CN)₄]^2- is: