5、向氧化铜和铁粉的混合物中加入一定量的稀硫酸,微热,充分反应后过滤,向滤液中插入锌片,有气泡产生,则以下判断不正确的是:A.不溶物中一定含有铁。B.滤液中一定含有硫酸。C.不
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![5、向氧化铜和铁粉的混合物中加入一定量的稀硫酸,微热,充分反应后过滤,向滤液中插入锌片,有气泡产生,则以下判断不正确的是:A.不溶物中一定含有铁。B.滤液中一定含有硫酸。C.不](/uploads/image/z/274811-59-1.jpg?t=5%E3%80%81%E5%90%91%E6%B0%A7%E5%8C%96%E9%93%9C%E5%92%8C%E9%93%81%E7%B2%89%E7%9A%84%E6%B7%B7%E5%90%88%E7%89%A9%E4%B8%AD%E5%8A%A0%E5%85%A5%E4%B8%80%E5%AE%9A%E9%87%8F%E7%9A%84%E7%A8%80%E7%A1%AB%E9%85%B8%EF%BC%8C%E5%BE%AE%E7%83%AD%EF%BC%8C%E5%85%85%E5%88%86%E5%8F%8D%E5%BA%94%E5%90%8E%E8%BF%87%E6%BB%A4%EF%BC%8C%E5%90%91%E6%BB%A4%E6%B6%B2%E4%B8%AD%E6%8F%92%E5%85%A5%E9%94%8C%E7%89%87%EF%BC%8C%E6%9C%89%E6%B0%94%E6%B3%A1%E4%BA%A7%E7%94%9F%EF%BC%8C%E5%88%99%E4%BB%A5%E4%B8%8B%E5%88%A4%E6%96%AD%E4%B8%8D%E6%AD%A3%E7%A1%AE%E7%9A%84%E6%98%AF%EF%BC%9AA.%E4%B8%8D%E6%BA%B6%E7%89%A9%E4%B8%AD%E4%B8%80%E5%AE%9A%E5%90%AB%E6%9C%89%E9%93%81%E3%80%82B.%E6%BB%A4%E6%B6%B2%E4%B8%AD%E4%B8%80%E5%AE%9A%E5%90%AB%E6%9C%89%E7%A1%AB%E9%85%B8%E3%80%82C.%E4%B8%8D)
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