NEET Chemistry Magnetic Properties MCQ Question
Give reason for the statement, [Ni(CN)₄]²⁻ is diamagnetic while [NiCl₄]²⁻ is paramagnetic in nature.
In [NiCl₄]²⁻, no unpaired electrons are present while in [Ni(CN)₄]²⁻ two unpaired electrons are present.
In [Ni(CN)₄]²⁻, no unpaired electrons are present while in [NiCl₄]²⁻ two unpaired electrons are present.
[NiCl₄]²⁻ shows dsp² hybridisation hence it is paramagnetic.
[Ni(CN)₄]²⁻ shows sp² hybridisation hence it is diamagnetic.
Correct Answer
Detailed Explanation
[Ni(CN)₄]²⁻ forms a square planar complex with dsp² hybridization, resulting in no unpaired electrons, making it diamagnetic. [NiCl₄]²⁻ forms a tetrahedral complex with sp³ hybridization, having unpaired electrons, making it paramagnetic.
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