题目内容

关于苯环上的定位基,下列说法错误的是

A. 致活基团是邻、对位定位基
B. 致钝基团是间位定位基
C. 乙酰氨基是间位定位基
D. 卤素是致钝基团,但是邻、对位定位基

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更多问题

下列化合物发生亲电取代反应活性最高的是

A. 甲苯
B. 苯酚
C. 硝基苯
D. 苯甲酸

n. a lamp in a transparent case, often a metal case with glass sides, that has a handle, so that you can carry it outside

A. liver
B. lantern
C. magnet
D. label

n. A vessel belonging to a steamship-line.

A. liner
B. label
C. liquid
D. layer

v. to bend or move from a vertical position; adj. without much flesh; thin and fit

A. lean
B. magnificent
C. loan
D. lag

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