Question

What happens in a Lewis acid-base reaction?
A. An acid donates an H+, and a base donates electrons.
B. An acid accepts an electron pair from a base.
C. An acid donates an Ht, and a base accepts an H+.
D. An acid donates an H+, and a base donates an OH-.​

Answer 1

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B. An acid accept an electron pair from a base.

In the Lewis theory of acid-base reactions, bases donate pairs of electrons and acids accept pairs of electrons. A Lewis acid is therefore any substance, such as the H+ ion, that can accept a pair of nonbonding electrons. In other words, a Lewis acid is an electron-pair acceptor.

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