本题目来源于试卷: Mechanisms of Chemical Change F.1 Proton Transfer Reactions，类别为 IB化学
[单选题]
Which of the following wq 5(chohk5t+6uo 3 xsy1zox( is a conjugate fx uve-jm1r) *2dy*s k acid-base pair?
A.
B.
C.
D.
参考答案: C
本题详细解析:
A conjugate acid-base pair differ by a single hydrogen ioicldg en 6+8y0n. Carbonic acid and carbonate (choice A) differ by two hydrogen ions so a+dycg0 nl86e ire not a conjugate acid-base pair. Boric acid and its hydroxide adduct (choice B) differ by a hydroxide ion and ammonia and hydroxylamine (choice D) by an oxygen atom.
This question is categorised as very hard as the student must recall the definition of a conjugate acid-base pair, interpret the structural formulas of unfamiliar molecules and identify a conjugate acid and base without the aid of a reaction equation.
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