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Lewis Dot Structure

Which of the ...

Question

Which of the following Lewis acid – base interactions are associated with the further involvement of d-orbitals?

i) $S b F_{5} + H F \to H^{+} [S b F_{6}]^{-}$
ii) $N H_{3} + B F_{3} \to H_{3} N B F_{3}$
iii) $A l C l_{3} + C l^{-} \to A l C l_{4}^{-}$
iv) $S F_{4} + F^{-} \to [S F_{5}]^{-}$

(i) and (ii)

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(i) and (iv)

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(ii) and(iii)

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(i) and (iii)

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Solution

The correct option is B (i) and (iv)
Both $S b F_{5}$ and $S F_{4}$ have all the p orbitals ocuppied. Hence they involve vacant d-orbitals to form $[S b F_{6}]^{-}$ and
$[S F_{5}]^{-}$ .

$H_{3} N B F_{3}$ here,the lone pair of N is donated to vacant p orbital of B

$A l C l_{4}^{-}$ here, the lone pair of Cl is donated to vacant p orbital of Al
Hence (i) and (iv) are correct

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Similar questions

S b F_{5} + H F \to H^{+} [S b F_{6}]^{-}

N H_{3} + B F_{3} \to H_{3} N B F_{3}

A l C l_{3} + C l^{-} \to A l C l_{4}^{-}

S F_{4} + F^{-} \to [S F_{5}]^{-}

B F_{3} + F^{-} \to B F_{4}^{-}

H F + S b F_{5} \to H S b F_{6}

P C l_{3} + C l^{-} \to P C l_{4}^{-}

N H_{3} + H^{+} \to N H_{4}^{+}

H_{3} O + H^{+} \to H_{4} O^{+}

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N H_{3} + B F_{3} ⟶ H_{3} N - B F_{3}

M g + S ⟶ M g^{2 +} + S^{2 -}

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