完成下列反应 CH2=CH-CH=CH2+Br2 1,4--加成 下列反应中，属于加成反应的是（　　）A．CH2=CH2+Br...

\u5df2\u77e5\uff1aCH2=CH-CH=CH2\u548cBr2\u6309\u7269\u8d28\u7684\u91cf\u4e4b\u6bd41\uff1a1\u53d1\u751f\u52a0\u6210\u53cd\u5e94\u65f6\uff0c\u53ef\u5f97\u5230\u4e24\u79cd\u4ea7\u7269\uff1aCH2BrCHBrCH=CH2\u4e0eCH2BrCH

\u2460\u4e0eBr2\u6309\u7269\u8d28\u7684\u91cf\u4e4b\u6bd41\uff1a1\u53d1\u751f\u52a0\u6210\u53cd\u5e94\u65f6\uff0c\u5f53\u53d1\u751f1\uff0c2-\u52a0\u6210\u65f6\uff0c\u751f\u6210\u7269\u4e3a\uff1aBrCH2C\uff08Br\uff09C\uff08CH3\uff09=CH2\uff0cCH2=CCBr\uff08CH3\uff09CH2Br\uff0c\u5f53\u751f1\uff0c4-\u52a0\u6210\u65f6\uff0c\u751f\u6210\u7269\u4e3aBrCH2C=C\uff08CH3\uff09CH2Br\uff0c\u5171\u67093\u79cd\uff0c\u6545\u7b54\u6848\u4e3a\uff1a3\uff1b\u2461\u4e0eHBr\u6309\u7269\u8d28\u7684\u91cf\u4e4b\u6bd41\uff1a1\u53d1\u751f\u52a0\u6210\u53cd\u5e94\u65f6\uff0c\u5f53\u53d1\u751f1\uff0c2-\u52a0\u6210\u65f6\uff0c\u751f\u6210\u7269\u4e3a\uff1aBrCH2CHC\uff08CH3\uff09=CH2\uff0cCH3CH\uff08Br\uff09C\uff08CH3\uff09=CH2\uff0cCH2=CCBr\uff08CH3\uff09CH3\uff0cCH2=CCH\uff08CH3\uff09CH2Br\uff0c\u5f53\u751f1\uff0c4-\u52a0\u6210\u65f6\uff0c\u751f\u6210\u7269\u4e3aCH3C=C\uff08CH3\uff09CH2Br\uff0cBrCH2C=C\uff08CH3\uff09CH3\uff0c\u5171\u6709\uff0c6\u79cd\uff0c\u6545\u7b54\u6848\u4e3a\uff1a6\uff0e

A\u3001\u4e59\u70ef\u4e2d\u78b3\u78b3\u53cc\u952e\u65ad\u88c2\uff0c\u4e24\u4e2a\u4e0d\u9971\u548c\u78b3\u539f\u5b50\u5206\u522b\u7ed3\u5408\u4e86\u6eb4\u539f\u5b50\u751f\u62101\uff0c2-\u4e8c\u6eb4\u4e59\u70f7\uff0c\u5c5e\u4e8e\u52a0\u6210\u53cd\u5e94\uff0c\u6545A\u6b63\u786e\uff1bB\u3001\u4e59\u9187\u71c3\u70e7\u751f\u6210\u4e8c\u6c27\u5316\u78b3\u4e0e\u6c34\uff0c\u5c5e\u4e8e\u6c27\u5316\u53cd\u5e94\uff0c\u6545B\u9519\u8bef\uff1bC\u3001\u82ef\u4e2d\u7684\u4e00\u4e2a\u6c22\u539f\u5b50\u88ab\u6eb4\u539f\u5b50\u53d6\u4ee3\u751f\u6210\u6eb4\u82ef\uff0c\u5c5e\u4e8e\u53d6\u4ee3\u53cd\u5e94\uff0c\u6545C\u9519\u8bef\uff1bD\u3001\u7532\u70f7\u4e2d\u76841\u4e2aH\u539f\u5b50\u88ab\u6c2f\u539f\u5b50\u53d6\u4ee3\u751f\u6210\u4e00\u6c2f\u7532\u70f7\uff0c\u5c5e\u4e8e\u53d6\u4ee3\u53cd\u5e94\uff0c\u6545D\u9519\u8bef\uff1b\u6545\u9009A\uff0e

1.4加成：
CH2=CH-CH=CH2 + Br2 ==>CH2Br-CH=CH-CH2Br

BrCH2CH=CHCH2Br

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