下列是除去括号内杂质的有关操作,正确的是()A.分离苯和乙烷:分液B.NO(NO2):通过水洗、干燥后,用向下排气法收集C.乙烷(乙烯):让气体通过盛酸性高锰酸钾溶液的洗气瓶D.乙醇(乙
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![下列是除去括号内杂质的有关操作,正确的是()A.分离苯和乙烷:分液B.NO(NO2):通过水洗、干燥后,用向下排气法收集C.乙烷(乙烯):让气体通过盛酸性高锰酸钾溶液的洗气瓶D.乙醇(乙](/uploads/image/z/4763240-8-0.jpg?t=%E4%B8%8B%E5%88%97%E6%98%AF%E9%99%A4%E5%8E%BB%E6%8B%AC%E5%8F%B7%E5%86%85%E6%9D%82%E8%B4%A8%E7%9A%84%E6%9C%89%E5%85%B3%E6%93%8D%E4%BD%9C%2C%E6%AD%A3%E7%A1%AE%E7%9A%84%E6%98%AF%EF%BC%88%EF%BC%89A.%E5%88%86%E7%A6%BB%E8%8B%AF%E5%92%8C%E4%B9%99%E7%83%B7%EF%BC%9A%E5%88%86%E6%B6%B2B.NO%EF%BC%88NO2%EF%BC%89%EF%BC%9A%E9%80%9A%E8%BF%87%E6%B0%B4%E6%B4%97%E3%80%81%E5%B9%B2%E7%87%A5%E5%90%8E%2C%E7%94%A8%E5%90%91%E4%B8%8B%E6%8E%92%E6%B0%94%E6%B3%95%E6%94%B6%E9%9B%86C.%E4%B9%99%E7%83%B7%EF%BC%88%E4%B9%99%E7%83%AF%EF%BC%89%EF%BC%9A%E8%AE%A9%E6%B0%94%E4%BD%93%E9%80%9A%E8%BF%87%E7%9B%9B%E9%85%B8%E6%80%A7%E9%AB%98%E9%94%B0%E9%85%B8%E9%92%BE%E6%BA%B6%E6%B6%B2%E7%9A%84%E6%B4%97%E6%B0%94%E7%93%B6D.%E4%B9%99%E9%86%87%EF%BC%88%E4%B9%99)
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