推荐回答(3个)
这个 我认为 首先要先写出原来烷烃的个数 比如说 丁烷 有两种 先写出来 人后再进行氯代 从一氯代物开始 注意写的时候 自己一定有个谱 按顺序写 这样才不会错 或者写陋什么的 就如丁烷 可以先从正丁烷开始写 写完再写异丁烷 一氯代物的书写 关键要注意对称性 不能多写 多练习 就会有效果了 多氯代物的写法 也是类似的 只要多练习 我觉得 会顺利过这关的 呵呵
要你判断的时候,你就先把有机物的化学式写出来
然后把卤基往上带,注意对称只能算一种,其他的就没什么了嘛
基本上就是考对称的。
判断烷烃的氯代物有几种,只需要明白等效氢,例如甲基上的三个氢就是等效氢
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