The general electronic configuration $(n - 1)$ $d^{3} n s^{2}$ indicates that particular element belongs to:

V B

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I V B

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V I B

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I I I B

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Solution

The correct option is A $V B$
The element belongs to $d -$ block. For d block, we get the group number by using the formula: group number $=$ number of $s$ electrons in outer shell $+$ no of $d$ electrons in the penultimate shell. Thus, the element belongs to group $V B$ as it is $d -$ block.

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