【简答题】(10分)亚甲基蓝(Methylnene Blue)在碱性条件下与葡萄糖作用生成亚甲基白(Methylene White)。亚甲基蓝的结构简式如下: 著名的蓝瓶子实验操作步骤如下: ①如图示在250mL锥形瓶中,依次加入2 g NaOH、100 mL H 2 O和3 g葡萄糖,搅拌溶解后,再加入3滴~5滴0.2%的亚甲基蓝溶液,振荡混合液呈现蓝色; ②塞紧橡皮塞(活塞a、b关闭),将溶液静置,溶液...
【简答题】Do you enjoy visiting a museum? Did you ever make a plan before a visit? Every museum must have something that attracts you. And there are many possible ways to enjoy yourself in a museum. If you foll...