If compound `AX_(3)` is a hypervalent compound then group no. of element A is, (where X is halogen and A belongs to `3^(rd)` period).
If compound `AX_(3)` is a hypervalent compound then group no. of element A is, (where X is halogen and A belongs to `3^(rd)` period).
A. `15^(th)` group
B. `16^(th)` group
C. `17^(th)` group
D. `13^(th)` group
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