精品解析:2023年江苏省南通市中考化学真题(原卷版)
2023年江苏省南通市中考化学真题1.近代著名实业家张謇在南通办教育、建纱厂,留下了宝贵遗产。纱厂生产的棉纱属于A.塑料B.纤维C.橡胶D.合金2.同时含有氮、磷、钾中两种或三种元素的化肥属于复合肥。下列属于复合肥的是A.B.C.D.3.“粗盐中难溶性杂质的去除”涉及的实验操作中不正确的是A.溶解粗盐B.过滤杂质C.蒸发结晶D.熄灭酒精灯4.含碳物质种类丰富、应用广泛。下列物质的性质与用途具有对应关系的是A.活性炭具有吸附性,可用于水的净化B.一氧化碳具有毒性,可用于高炉炼铁C.碳酸氢钠受热易分解,可用于治疗胃酸过多症D.聚氯乙烯塑料热稳定性差,可用作电线外面的绝缘层阅读下列材料,完成下面小题...
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