考情综述从近几年的高考试题来看,化学键知识考查的重点是判断化学键的类型,并常与分子极性的判断或与晶体类型的判断结合在一起进行考查,题目难度适中。而分子结构的考查则注重分子空间构型、分子极性、 Exam Summary From the college entrance examination papers in recent years, the focus of chemical bond knowledge examination is to determine the type of chemical bond, and often with the molecular polarity of judgments or crystal type judgments combined with the examination, the title is moderate difficulty. The molecular structure of the examination is focused on the molecular space configuration, molecular polarity,