Coordination Compounds: VBT MCQ

Solve this quality-checked JEE multiple-choice question, then review the correct answer and explanation.

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VBTMediumQuestion 740005

Question

In [NiCl₄]²⁻, Ni²⁺ is sp³ hybridised. This complex is:

A
Tetrahedral and paramagnetic
Correct
B
Square planar and diamagnetic
C
Octahedral
D
Linear

Correct answer

Tetrahedral and paramagnetic

Explanation

Ni²⁺ has d⁸ configuration. With weak field Cl⁻ ligands: sp³ hybridisation → tetrahedral geometry. Unpaired electrons remain → paramagnetic. Compare with [Ni(CN)₄]²⁻ (dsp² hybridisation, square planar, diamagnetic) due to strong CN⁻.

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