Q. 55.0( 2 Votes )

The exhibition of A. B

B. Al

C. Ga

D. In

Answer :

The element M in the complex-ion MF63- has a coordination number of six.

Boron has only s- and p-orbitals and no d – orbitals.

Therefore, at the maximum, it can show a coordination number of 4. Thus, B cannot form a complex of the type MF63-.

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