“分离”与“提纯”是有区别的,有的同学不清楚两者的差别,有的同学没有注意审题,这都将导致不必要的失分。做有机物的分离与提纯试题的关键有两个:一是选择合适的方法,包括准确地选择试剂;二是将自己的实验操作过程准确地表达出来。 “Separation ” and “purification ” is different, some students do not know the difference between the two, some students did not pay attention to examining questions, which will lead to unnecessary loss points. Do organic separation and purification of the key questions there are two: First, choose the right method, including the choice of reagents accurately; the second is the process of their experiments accurately expressed.