富含下列哪些离子会使河水有颜色(  )A.Al3+ B.Fe3+ C.Fe2+ D.Cu2+

作者: tihaiku 人气: - 评论: 0
问题 富含下列哪些离子会使河水有颜色(  )
选项 A.Al3+ B.Fe3+ C.Fe2+ D.Cu2+
答案 BCD
解析 AI3+是无色的,Fe3+黄色或红褐色,Fe2+是浅绿色的,Cu2+是蓝色的。故答案为BCD。
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