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硅是碳族中的重要元素,在2013年高考试题中多处出现,成为2013年高考的热点,现将其总结如下.一、通过硅及其化合物考查基础知识例1(广东卷第10题)表1中叙述Ⅰ和Ⅱ均正确并且有因果关系的是()表1选项叙述Ⅰ叙述Ⅱ(A)NH4Cl为强酸弱碱盐用加热法除去NaCl中的NH4Cl
Silicon is an important element in the carbon family, appeared in many places in the 2013 college entrance examination examination questions and became the hot spot of the college entrance examination in 2013. Now it is summarized as follows: First, through the examination of silicon and its compounds Basic knowledge Example 1 Table 1 describes the I and II are correct and causal relationship is (Table 1) Option Description Ⅰ Description Ⅱ (A) NH4Cl strong acid and weak base salt Heating with NaCl to remove NH4Cl