2015 National Question 3 Single-choice Differentiating 2015_新课标I Paper 3.(6 分)乌洛托品在合成、医药、染料等工业中有广泛用途,其结构式如图所示。将甲醛水溶液与氨水混合蒸发可制得乌洛托品。若原料完全反应生成乌洛托品,则甲醛与氨的物质的量之比为( ) A. 1:1B. 2:3C. 3:2D. 2:1 Answer keyC ☆ SaveCan't do it, show the explanation查看原卷 →