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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.

Verified Answer :

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

Answer: Option (4) is the correct answer.

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.

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