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Bronsted Lowry Theory

Identify a sp...

Question

Identify a species which is not a bronsted acid but is a lewis acid.

A

B F_{3}

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B

H_{3}^{+} O

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C

N H_{3}

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D

H C l

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Solution

The correct option is A $B F_{3}$
Lewis acids are the acids which accept lone pairs.
$B F_{3}$ orbital is vacant, it is not fully filled therefore, it can accept a lone pair, hence, it is a lewis acid.

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