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为验证卤素单质氧化性的相对强弱,某小组用右图所示装置进行试验(夹持仪器已略去,气...

为验证卤素单质氧化性的相对强弱,某小组用右图所示装置进行试验(夹持仪器已略去,气密性已检验)。试验过程:

说明: 6ec8aac122bd4f6e

I.打开弹簧夹,打开活塞a,滴加浓盐酸。

II.当B和C中的溶液都变为黄色时,夹紧弹簧夹。

III.当B中溶液由黄色变为棕色时,关闭活塞a。

IV.……

试回答下列问题:

(1)A中产生                                                                                                         色气体,其结构式是                 

(2)能使湿润的淀粉—KI试纸变蓝的气体是                                                                 

(a) Cl2 (b) N2O4 (c) I2蒸气 (d) SO2 (e) O3 (f) CO2

(3)滴加浓盐酸前,分液漏斗首先要                                                                                                                      

(4)过程III实验目的是                                                                                                                                                                                                                                                              

(5)A中产生氯气的离子方程式为                                                                                                                                                                                                                                                        

(6)B中浸有NaOH溶液的棉花作用是                                                                                               ,写出反应的离子方程式                                                                                                                                                                                                                                                                         

 

(1)                          ,                         (2)                                        打开分液漏斗口上的玻璃塞 (3)                                                                                                         确认C的黄色溶液中无Cl2,排除Cl2对溴置换碘实验的干扰 (4)                                                                                                         (5)                                                                                                         吸收Cl2,防止对环境造成污染 (6)                                                                                    ,                                                                                                   【解析】
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