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MHT CET 2022 Chemistry question

ChemistryClassification of Elements and Periodicity in PropertiesMHT CET 2022

What is the number of unpaired electrons present in and ions respectively?

Answer: (D)

Solution

Sc () has the configuration ; losing three electrons gives (), with no unpaired electrons. Zn () has ; losing two electrons gives Missing close brace\mathrm{Zn^{2+}$} =

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Question ID VK-097129