Question

為驗(yàn)證鹵素單質(zhì)氧化性的相對(duì)強(qiáng)弱，某小組用右圖所示裝置進(jìn)行試驗(yàn)(夾持儀器已略去，氣密性已檢驗(yàn))。試驗(yàn)過程：

I．打開彈簧夾，打開活塞a，滴加濃鹽酸。
II．當(dāng)B和C中的溶液都變?yōu)辄S色時(shí)，夾緊彈簧夾。
III．當(dāng)B中溶液由黃色變?yōu)樽厣珪r(shí)，關(guān)閉活塞a。
IV．……
試回答下列問題：
（1）A中產(chǎn)生                                                                                                        色氣體，其結(jié)構(gòu)式是                 。
（2）能使?jié)駶?rùn)的淀粉—KI試紙變藍(lán)的氣體是                                                                 。
(a) Cl₂ (b) N₂O₄ (c) I₂蒸氣 (d) SO₂ (e) O₃ (f) CO₂
（3）滴加濃鹽酸前，分液漏斗首先要                                                                                                                      。
（4）過程III實(shí)驗(yàn)?zāi)康氖?u>                                                                                                                                                                                                                                                            。
（5）A中產(chǎn)生氯氣的離子方程式為                                                                                                                                                                                                                                                       。
（6）B中浸有NaOH溶液的棉花作用是                                                                                              ，寫出反應(yīng)的離子方程式                                                                                                                                                                                                                                                                        。

Answer 1

a、b、c、e

黃綠色

Cl—Cl

（1）                           ，                        （2）                                       

打開分液漏斗口上的玻璃塞

（3）                                                                                                        

確認(rèn)C的黃色溶液中無Cl2，排除Cl2對(duì)溴置換碘實(shí)驗(yàn)的干擾

（4）                                                                                                        

（5）                                                                                                        

吸收Cl2，防止對(duì)環(huán)境造成污染

（6）                                                                                   ，

                                                                                                

略