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Nomenclature of Alcohols

Which of the ...

Question

Which of the following are Lewis Acids? Why?
(i) H2O
(ii) BF3
(iii) H+
(iv) NH4+

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Solution

BF_3,NH₄⁺ and H⁺, because these are electron deficient and accept lone pair of elections.

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Q. Which of the following are Lewis acids?

H_{2} O, B F_{3}, H^{+}, N H_{4}^{+}

Q. Which of the following does not obey the octet or duplet rule?

(i) H_{2} O (i i) B F_{3} (i i i) P C l_{5} (i v) C O_{2} (v) N H_{3}

Q. From the following reactions identify each of an Arrhenius acid or base, Bronsted-Lowry acid or base, or Lewis acid or base.
(A)

N a O H

N a O H \to {N a}^{+} + {O H}^{-}

H C l

H C l \to H^{+} + {C l}^{-}

N H_{3}

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

N H_{4}^{+}

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

{(C H_{3})}_{3} N :

{(C H_{3})}_{3} N : + B F_{3} \to {(C H_{3})}_{3} N : B F_{3}

Q. Which of the following are Lewis acids?

Q. 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}]^{-}

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}]^{-}

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