2025 年重庆市普通高中学业水平选择性考试9月调研(康德卷)化学答案
9月调研测试卷(化学)参考答案第1页共5页2025年重庆市普通高中学业水平选择性考试9月调研测试卷化学参考答案1~5CBCAA6~10BBDBA11~14CAAD1.C【解析】A.精制食盐的有效成分为NaCl,A正确;B.味精的有效成分为谷氨酸钠,B正确;C.白砂糖有效成分应为C12H22O11,C错误;D.食用白醋的有效成分为CH3COOH,D正确。2.B【解析】A.H+和ClO-生成弱电解质HClO而不能大量共存;B.选项中所给离子相互都不反应,可以大量共存;C.Ca2+和OH-、SO2-4反应生成沉淀而不能大量共存;D.HCO-3和Fe3+发生双水解生成沉淀和气体,不能大量共存。3.C【...
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