NEET | 2018Chemistry miscellaneousEasy

Question

Which one of the following elements is unable to form M $F_{6}^{3}$ ion ?

Options

A.

Ga

B.

AI

C.

B

D.

In

Solution

M $F_{6}^{3}$
Boron belongs to 2^nd period and it does not have vacant d-orbital.

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