Question

Which statement describes an alternate theory of acids and bases?

(1) Acids and bases are both H+ acceptors.
(2) Acids and bases are both H+ donors.
(3) Acids are H+ acceptors, and bases are H+ donors.
(4) Acids are H+ donors, and bases are H+ acceptors.

Answer 1

The answer is (4) Acids are H+ donors, and bases are H+ acceptors. This constitutes the Bronsted-Lowry theory of acids and bases.

Answer 2

Answer: Option (4) is the correct answer.

Step-by-step explanation:

According to Bronsted and Lowry, acids are the species which can donate hydrogen or
`H^(+)` ions.

Whereas bases are the species which can accept hydrogen or
`H^(+)` ions.

Thus, we can conclude that the statement acids are
`H^(+)` donors, and bases are
`H^(+)` acceptors describes an alternate theory of acids and bases.