What hybridization is expected on the central atom of e

| What hybridization is expected on the central atom of each of the following molecules?
(i)

B e H_{2}

(ii)

C H_{2} B r_{2}

(iii)

P F_{6}^{-}

(iv)

B F_{3}

A. $s p^{2}, s p, s p^{3}, s p^{2}$

B. $s p, s p^{3}, s p^{3} d, s p^{2}$

C. $s p, s p^{3}, s p^{3} d^{2}, s p^{2}$

D. $s p^{2}, s p, s p^{2}, s p^{3}$

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