Question

question 5 of 10
what happens in a lewis acid - base reaction?
a. an acid donates an h+, and a base donates electrons.
b. an acid donates an h+, and a base donates an oh−.
c. an acid accepts an electron pair from a base.
d. an acid donates an h+, and a base accepts an h+.

Explanation:

According to the Lewis acid - base theory, a Lewis acid is an electron - pair acceptor and a Lewis base is an electron - pair donor. In a Lewis acid - base reaction, the acid accepts an electron pair from the base.

• Option A: Incorrect. In Lewis theory, it's about electron - pair transfer, not just \(H^{+}\) donation and electron donation in this way.
• Option B: This is more related to Arrhenius acid - base concept (\(H^{+}\) and \(OH^{-}\) transfer) rather than Lewis theory.
• Option C: Correct. Follows the Lewis acid - base definition.
• Option D: This is related to Bronsted - Lowry acid - base concept (\(H^{+}\) transfer) not Lewis.

Answer:

C. An acid accepts an electron pair from a base.