Which of the following statements about Brønsted-Lowry acids and bases is true?
A)Loss of a proton from a base forms its conjugate acid.
B)Loss of a proton from an acid forms its conjugate base.
C)Gain of a proton by an acid forms its conjugate base.
D)Brønsted-Lowry acid-base reactions always result in the transfer of a proton from a base to an acid.

Question

Quizplus · Accepted Answer

According to the Brønsted-Lowry theory, an acid is a species that donates a proton and a base is a species that accepts a proton. When an acid loses a proton, it forms its conjugate base, and when a base accepts a proton, it forms its conjugate acid. Thus, option B is true. Option A is incorrect because loss of a proton from a base forms its conjugate acid, not from an acid. Option C is incorrect because gain of a proton by a base forms its conjugate acid, not its conjugate base. Option D is incorrect because a Brønsted-Lowry acid-base reaction may result in the transfer of a proton from an acid to a base or vice versa, not necessarily from a base to an acid.

Which of the Following Statements About Brønsted-Lowry Acids and Bases