问题 单项选择题 A1/A2型题

异烟肼与香草醛反应,干燥后测定其熔点为()

A.248~251℃

B.208~211℃

C.218~221℃

D.228~231℃

E.238~241℃

答案

参考答案:D

解析:异烟肼与香草醛反应,干燥后测定其熔点为228℃~231℃。

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