向盛有酚酞和NaOH溶液的烧杯中滴加稀硫酸,直至液体呈无色。为探

向盛有酚酞和NaOH溶液的烧杯中滴加稀硫酸,直至液体呈无色。为探究反应后溶液中溶质的组成,所选试剂不正确的是 (     )

  A.稀盐酸    B.锌粒    C.碳酸钠溶液    D.紫色石蕊溶液

答案

A

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