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铁单质及其化合物的性质始终是高考热点之一,在近三年的高考中频频出现。其中铁元素的变价问题、铁的冶炼问题、合金的概念等知识点,常在离子共存、离子反应方程式、物质的鉴别制取及推断等问题中考查。试题中选择、填空、推断、实验、计算等多种形式并存。另外,对于基础知识的迁移也是此部分知识的命题特色之一。这部分知识与化学基本概念、基础理论、化学实验有着广泛的联系。同时,铁及其化合物在实际中的应用也很广泛,因此命题空间极为广阔。
The nature of iron and its compounds has always been one of the entrance exam hot spots, frequently appeared in college entrance examination in the past three years. Among them, the problem of price change of iron, iron smelting and alloy are often examined in ionic coexistence, ionic reaction equations, material identification and inference. Questions in the selection, fill in the blanks, inference, experiments, calculations and other forms co-exist. In addition, the transfer of basic knowledge is one of the propositional features of this part of knowledge. This part of knowledge and chemistry basic concepts, basic theory, chemistry experiment has a wide range of connections. At the same time, iron and its compounds are also widely used in practice, so the proposition space is extremely broad.