Question

Another definition of acids and bases focuses on the tendencies of these molecules to accept and donate a share in a pair of electrons. Which statements are probably true for this classification system?

I. Acids are electron pair donors
II. Acids are electron pair acceptors.
III. Bases are electron pair donors.
IV. Bases are electron pair acceptors.

A: I and III only
B: I and IV only
C: II and III only
D: II and IV only

Answer 1

According to the Lewis theory, acids are electron pair acceptors and bases are electron pair donors within chemical reactions.

Step-by-step explanation:

In chemistry, the Lewis theory defines acids as electron pair acceptors and bases as electron pair donors. This definition of acids and bases is more general than the Arrhenius and Brønsted-Lowry theories, as it does not limit acids to substances that donate protons. According to the Lewis theory, a Lewis acid can accept a pair of electrons to form a coordinate covalent bond, while a Lewis base donates an unshared pair of electrons, often proceeding as nucleophiles in biological reactions.