Classify the following species into Lewis acids and Lewis bases and show how these act as Lewis acid`//`base:
a. `overset(Θ)(O)H, b. F^(Θ), c. H^(o+), d. BCl_(3)`

Explanation

(a) `OH^(-)` can donate electron pair. Hence, it is a Lewis base
(b) `F^(-)` can also donate electron pair. Hence, it is a Lewis base
(c) `H^(+)` can accept electron pair. Hence, it is a Lewis acid
(d) `BCl_(3)` is deficient is electrons. Hence, it can accept electron pair and is, therefore, a Lewis acid.