問題詳情

(二)C8H9NO2  本化合物不溶於水,亦不溶於氫氧化鈉水溶液,但是可溶於 10%鹽酸水溶液,當其鹽酸水溶液用氫氧化鈉中和後,可回復此化合物。(This compound is insolublein water and aqueous NaOH, but dissolves in 10% HCl. When its solution in HCl isneutralized with NaOH, compound is recovered unchanged.)1H-NMR(δ):3.84(s,3H),4.18(s,2H),7.60(d,2H),8.70(d,2H).

參考答案

答案:C
難度:非常簡單0.949042
統計:A(31),B(251),C(6686),D(77),E(0)

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