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प्रश्न
Which one of the following is an outer orbital complex and exhibits paramagnetic behaviour?
विकल्प
[Ni(NH3)6]2+
[Zn(NH3)6]2+
[Cr(NH3)6]3+
[Co(NH3)6]3+
MCQ
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उत्तर
[Ni(NH3)6]2+
Explanation:
Ni2+ (d8) forms an outer orbital complex by using its 4d orbitals to bond with ligands. This complex is paramagnetic because Ni2+ has unpaired electrons.
Other complexes either use inner orbitals or do not have unpaired electrons, making them diamagnetic.
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