已知电离平衡常数：H2CO3＞HClO＞HCO3﹣，氧化性：HClO＞Cl2＞Br2＞Fe3+．下列有关的离子方程式正确的是_刷题宝

题干

已知电离平衡常数：H₂CO₃＞HClO＞HCO₃^﹣，氧化性：HClO＞Cl₂＞Br₂＞Fe³⁺．下列有关的离子方程式正确的是（）

A：向能使pH试纸显深蓝色的溶液中通入少量二氧化碳：OH^﹣+CO₂═HCO₃^﹣

B：向NaClO溶液中加入浓氢溴酸：ClO^﹣+2H⁺+2 Br^﹣═Cl^﹣+Br₂+H₂O

C：向NaClO溶液中通入少量二氧化碳：2ClO^﹣+CO₂+H₂O═2HClO+CO₃²^﹣

D：向FeBr₂溶液中滴加少量Cl₂溶液：2 Br^﹣+Cl₂═Br₂+2Cl^﹣

上一题下一题 0.0难度选择题更新时间:2018-08-20 08:47:30

答案(点此获取答案解析）

B

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