Chapter 17, Problem 6E

Classify each of the following substances into the appropriate category: (1) Lewis acid;

(2) Lewis base; (3) substance that can act as either a Lewis acid or Lewis base; (4) substance that is neither a Lewis acid nor a Lewis base.

(a) ${\text{CCl}}_{\text{4}}$,(b) ${\text{F}}^{-}$, (c) ${\text{Cu}}^{2+}$, (d) ${\text{Fe}}^{3+}$, (e) ${\text{O}}_{\text{2}}$