The sentence “Let me ask you a question” can be replaced by all the following sentences EXCEPT [A]I have a question to you [B] I have a question to ask you [C] I have a question to put to you [D] I have a question for you to answer
【简答题】某课外小组同学用如图所示装置在实验室制备氯气并探究其相关性质(夹持设备已略). (1)制备氯气选用的药品为:漂粉精固体和浓盐酸,相关的离子反应方程式为: ______; (2)装置B的作用之一是安全瓶,监测实验进行时C中是否发生堵塞,请写出发生堵塞时B中的现象______; (3)装置C的实验目的是验证氯气是否具有漂白性,为此C中①、②、③依次放入______;(选填字母) ① ② ③ a 干燥的...