A. are oppositely charged B. differ only by a hydroxide ion C. differ only by an electron D. differ only a proton
Correct Answer: D
Explanation
A conjugate acid - base pair differ only by a proton. For example basel acid 2 acid 1 base 2 \(NH _{3} / NH _{4}^{+}\)are conjugate acid/ base pair differing only in proton \(\left( H ^{+}\right)\) \(H _{2} O / OH ^{-}\)are also conjugate acid/base pair that differs only in proton \(\left( H ^{+}\right)\)