MPSC Rajyaseva 2020 GS Paper 1 — Question 70
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टेट्राहेड्रल [Ni(CO)4] व्यामिश्र/जटिल (complex) मध्ये विजोड इलेक्ट्रॉन्सची संख्या ______ आहे. The number of unpaired electrons in tetrahedral [Ni(CO)4] complex is ________
1)0✓ Correct
2)1
3)2
4)3
In [Ni(CO)4], nickel is in the 0 oxidation state with a 3d8 4s2 configuration. CO is a strong field ligand that causes pairing of electrons, resulting in sp3 hybridization and zero unpaired electrons.