A) \[B{{F}_{3}}\]
B) \[AlC{{l}_{3}}\]
C) \[S{{O}_{2}}\]
D) \[{{H}_{2}}O\]
Correct Answer: D
Solution :
According to Lewis, electron deficient specie are called acids while bases are the substances which have unshared pair of electron and can donate the electron pair to the formation of coordinate bond. Hence,
is a Lewis base while BF3, A1C13, and SO 2 are Lewis acids.
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