2022高三英语周报37答案

8B【解析】A项,酸浸过程主要发生ZnO、ZnS与硫酸反应,生成尾气H2S,正确;B项,滤渣1的主要成分是SiO2、CuS,应先加入稀硫酸,后滴入过氧化氢溶液。若顺序相反,会造成HO2与固体颗粒接触分解,错误;C项,滤渣2的主要成分是Si∽O2,正确;D项,操作②和操作⑤为从溶液中得到结晶水合物的过程,所以应为蒸发浓缩,冷却结晶过滤,正确。

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