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प्रश्न
Which of the following ion is diamagnetic?
विकल्प
Sc3+
Co2+
Ni2+
Mn2+
MCQ
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उत्तर
Sc3+
Explanation:
\[\ce{Sc^{3+} -> [Ar] 3d^0}\]
It is because of the lack of unpaired electrons that it is diamagnetic.
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