现有两瓶失去标签的无色溶液它们分别是稀h2so4和naoh溶液使用下列试剂不能将这两种溶液区别开来的是 A.碳酸钠溶液b.无色酚酞试液 Template




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tomski现有两瓶失去标签的无色溶液它们分别是稀h2so4和naoh溶液使用下列试剂不能将这两种溶液区别开来的是 a.碳酸钠溶液b.无色酚酞试液 coloring