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Question:

Classify the following species into Lewis acids and Lewis bases and show how these act as Lewis acid/base:

(a) OH–

(b) F–

(c) H+

(d) BCl3

Answer:

(a) OH- is a Lewis base since it can donate its lone pair of electrons.

(b) F- is a Lewis base since it can donate a pair of electrons.

(c) H+ is a Lewis acid since it can accept a pair of electrons.

(d) BCl3 is a Lewis acid since it can accept a pair of electrons.


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