您所在的当前位置：高中化学试题 >

氯及其化合物

> Cl 2和SO 2都具有漂白作用，能使品红溶液褪色。若将等物质的量的Cl 2、SO 2混合再通入品红与BaCl 2的混合溶液，能观察到的现象是（） ①溶液很快褪色　②溶液不褪色　③出现沉淀　④不出现沉淀 A．①② B．①③ C．②③ D．②④

问题：

发布时间：2024-09-13

Cl ₂和SO ₂都具有漂白作用，能使品红溶液褪色。若将等物质的量的Cl ₂、SO ₂混合再通入品红与BaCl ₂的混合溶液，能观察到的现象是（）
①溶液很快褪色　②溶液不褪色　③出现沉淀　④不出现沉淀

A．①② B．①③

C．②③ D．②④

参考答案：

提问用户：f3***evE

可能感兴趣的题目：

1 某工厂排放的工业废水中可能含有K +、Ag +、NH 4 +、Mg 2+、SO 4 2-、Cl -、NO 3 -、HCO 3 -等离子．经检测废水呈明显的碱性，则可确定该厂废水中肯定不含有的离子组合是（　　） A．Ag+、K+、NO3-、HCO3- B．K+、NH4+、NO3-、SO42- C．Ag+、NH4+、Mg2+、HCO3- D．K+、Mg2+、SO42-、Cl-
2 函数y=cos 2x-sin 2x+2sinx•cosx的最小正周期为 ______，此函数的值域为 ______．
3 ________ do you guess will be the first 10 top students in English in your school next term? A.Who B.Whom C.Which D.What
4 阅读理解。 I was very disappointed not to be able to go to the jazz concert last Friday. The advertisement in the paper said that you could buy tickets at the theatre box in Richland Hills any day between 10:00 and 4:00.Since I work from 9:00 to 5:30, the only time I could go to the theatre was during my 45-minute lunch break. Unfortunately, the theatre is on the other side of the town, and the bus service between my office and Richland Hills is not very good. But if you are lucky, you can make the round trip in 45 minutes. Last Monday. I stood at the bus stop for 15 minutes waiting for the bus. By the time I saw one come around the corner, there was not enough time left to make the trip.So I gave up and went back to the office. The same thing happened on Tuesday, and again next day. On Thursday, my luck changed. I got on a bus right away and arrived at the theatre in exactly 20 minutes. When I got there, however, I found a long line of people at the box office. I heard one man say he had been waiting in line for over an hour. Realizing I would not have enough time to wait in line, I caught the next bus and headed back across the town. By Friday I realized my only hope was to make the trip by taxi, it was expensive, but I felt it would be worth it to hear the concert. The trip by taxi only took 10 minutes, but felt like an hour to me. When I got to the theatre, I was relieved to see that nobody was waiting in line. The reason, however, I quickly discovered, was that they had already sold all the tickets. 1.The man learned that there would be a concert last Friday. A. from his friends B. from one of his work-mates C. over the radio D. from the newspaper 2. He tried to go to the theatre every day but managed to get there only _______. A. once B. twice C. three times D. four times 3.The underlined word "relieved" may best be replaced by ___________. A. surprise B. pleased C. puzzled D. sorry
5 下列说法中正确的是 A.一切物体都是温度升高时膨胀，温度降低时收缩 B.由于热胀冷缩，物体在温度升高时将略变轻些 C.生馒头在笼中蒸煮后发得很大，这主要不是因为受热膨胀引起的 D.铁路桥一端固定，另一端并不固定，这样在气温变化时铁桥可以自由伸缩
6 该图为一幅我国山东某区域的地理信息空间数据图，每个小方格表示实际长宽各10米，图中r表示河流，s表示林木，h表示住房，f表示耕地。读图回答问题。 s s s s s r s s s s s s r s f f s s s r f f f f r f f f f h r f f f f r r f f r f f r r s s r s 小题1:该河流的流向是 A．西北流向东南 B．由东向西流 C．由东北流向西南 D．由南流向北小题2:该处的森林覆盖率为 A．29% B．18% C．82% D．49%
7 —What about the package of food? —You’d better _____ it at the service counter before entering the bookstore. A．allocate B．purchase C．deposit D．postpone
8 What does he do?________ . A.He is a cleaner B.He is a cleanner C.He does a doctor D.She is a doctor
9 It was only after he had read the papers ________ Mr.Gross realized the task before him was extremely difficult to complete. (2013·大纲全国，30) A．when B．that C．which D．what
10 在强酸性无色透明溶液中，下列各组离子能大量共存的是（　　） A．Fe3+、K+、Cl-、MnO4- B．Ag+、Na+、NO3-、I- C．Zn2+、Al3+、SO42-、Cl- D．Ba2+、NH4+、Cl-、HCO3-

Cl 2和SO 2都具有漂白作用，能使品红溶液褪色。若将等物质的量的Cl 2、SO 2混合再通入品红与BaCl 2的混合溶液，能观察到的现象是（ ） ①溶液很快褪色 ②溶液不褪色 ③出现沉淀 ④不出现沉淀 A．①② B．①③ C．②③ D．②④

可能感兴趣的题目：