–What is the theme about for the meeting this evening?. --No idea. Perhaps we will have to discuss t

题干

–What is the theme about for the meeting this evening?.
--No idea. Perhaps we will have to discuss the plan ___ a few days later.

A：carried out

B：being carried out

C：to be carried out

D：carrying out

上一题下一题 0.0难度选择题更新时间:2018-05-21 02:55:36

C

实验室制备1，2﹣二溴乙烷的反应原理如下：

CH₃CH₂OH $\overset{H_{2} S O_{4} (浓)}{\underset{170 ℃}{\to}}$ CH₂=CH₂

CH₂=CH₂+Br₂→BrCH₂CH₂Br

可能存在的主要副反应有：乙醇在浓硫酸的存在下在140℃脱水生成乙醚．

用少量的溴和足量的乙醇制备1，2﹣二溴乙烷的装置如图所示：

有关数据列表如下：

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