Chemically Zinc group elements closely resemble ______.

I A group

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II A group

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III A group

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IV A group

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Solution

The correct option is C II A group
Zinc belongs to IIB and it closely resembles IIA because of the completely filled valence orbitals.
The reason is in IIA group all the elements have completely filled s-orbital while in IIB group the elements have completely filled s orbital along with d-orbital.

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