Which of the following species is a Lewis acid?
Select one:
a. Al3+
b. P(CH3)3
c. F-
d. Cl2
e. NH3
Lewis gain electron from other substances so positive charge ions will behave like Lewis acid and negative charge ions / lone pair rich species donates electron so behave like Lewis base.
Al3+ is Lewis acid.
Other will donate electrons so Lewis base
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