您所在的当前位置：高中化学试题 >

氯及其化合物

> 下列关于氯水的叙述中，正确的是: A．新制氯水中没有分子，只有离子 B．新制氯水在光照的条件下，可以产生气体，该气体是氯气 C．新制氯水中滴加硝酸银溶液，没有任何现象 D．氯气可以使湿润的有色布条褪色

问题：

发布时间：2024-09-10

下列关于氯水的叙述中，正确的是:

A．新制氯水中没有分子，只有离子

B．新制氯水在光照的条件下，可以产生气体，该气体是氯气

C．新制氯水中滴加硝酸银溶液，没有任何现象

D．氯气可以使湿润的有色布条褪色

参考答案：

提问用户：Ja***7LB

可能感兴趣的题目：

1 After thirty years of separation, I _____ with my sister. How happy we were! A．kept in touch B．caught up C．kept up D．got in touch
2 实验室可用如下反应制取氯气，反应原理如下： 2KMnO 4 ＋ 16HCl ＝ 2KCl ＋ 2MnCl 2＋ 5Cl 2↑ ＋ 8H 2O （1）用单线桥表示出上述反应中电子转移的方向和数目（2）上述反应中氧化剂与还原剂的物质的量比（3）15.8g KMnO 4能使多少克HCl被氧化？（4）产生的Cl 2在标准状况下的体积为多少？（
3 读图，关于图中四省区，判断正确的是 A.有热带气候分布的是①③ B.位于地势第二级阶梯的是④ C.纬度位置最高的是② D.长江流经①③
4 一颗人造地球卫星在地面附近绕地球做匀速圆周运动的速率为v，角速度为ω，加速度为 g，周期为T. 另一颗人造地球卫星在离地面高度为地球半径的轨道上做匀速圆周运动，则（） A．它的速率为 B．它的加速度为 C．它的运动周期为 D．它的角速度也为ω
5 小军同学用下列四种方法测定小球沿桌面滚动时的平均速度，其中你认为最好的是 A.先选定一段较长的路程，测定小球通过这段路程所用的时间 B.先选定一段较短的路程，测定小球通过这段路程所用的时间 C.先选定一段较长的时间，测定小球在这段时间内通过的路程 D.先选定一段较短的时间，测定小球在这段时间内通过的路程
6 已知| a |=5，| b |=3，| a - b |=7则向量 a 与 b 的夹角为______．
7 下列离子在溶液中因发生氧化还原反应而不能大量共存的是 [ ] A．H 3O + NO 3 - Fe 2+ Na + B．Ag + NO 3 - Cl - K + C．H + Ba 2+ CH 3COO - NO 3 - D．Mg 2+ NH 4 + Br - OH -
8 阅读理解。 A man once said how useless it was to put advertisements in the newspaper."Last week," he said,"my umbrella was stolen from a London church. As it was a present, I spent twice its worth in advertising, but didn"t get it back." "How did you write your advertisement?" asked one of the listeners, a merchant. "Here it is," said the man, taking out of his pocket a slip cut from a newspaper. The other man took it and read,"Lost from the City Church last Sunday evening, a black silk umbrella.. The gentleman who finds it will receive ten shillings on leaving it at No. 10 Broad Street." "Now," said the merchant,"I often advertise, and find that it pays me well. But the way in which an advertisement is expressed of extreme importance. Let us try for your umbrella again, and if it fails, I"ll buy you a new one." The merchant then took a slip of paper out of his pocket and wrote: "If the man who was seen to take an umbrella from the City Church last Sunday evening doesn"t wish to get into trouble, he will return the umbrella to No.10 Broad Street. He is well known." This appeared in the newspaper, and on the following morning, the man was astonished when he opened the front door. In the doorway lay at least twelve umbrellas of all sizes and colors, and his own was among them. Many of them had notes fastened to them saying that they had been taken by mistake, and begging the loser not to say anything about the matter. 1. What is an advertisement? A. A news item. B. public opinions. C. One way to voice one"s view. D. A public announcement on papers, TV, etc. 2. The result of the first advertisement was that __________. A. the man got his umbrella back B. the man wasted some money advertising C. nobody found the missing umbrella D. the umbrella was found somewhere near the church 3. The merchant suggested that the man should ________. A. buy a new umbrella B. go on looking for his umbrella C. write another and better advertisement D. report the police 4. "If it fails, I"ll buy you a new one," suggested that the merchant ________. A. was quite sure of success B. wanted to buy him a new umbrella C. didn"t know what to do D. was rich enough to buy one 5. The story is mainly about _________. A. a useless advertisement B. how to make an effective advertisement C. how the man lost and found his umbrella D. what the merchant did for the umbrella owner
9 2007年我国农村取消了农业税，外国人称之为“中国农业的一场革命”，这将大大促进我国农业的发展。这体现了对农业生产产生巨大影响的因素是（） A．政策 B．市场 C．交通 D．社会生产力
10 民航客机都没有紧急出口，发生意外情况时打开紧急出口，狭长的气囊会自动充气生成一条通向地面的斜面，乘客可沿斜面滑行到地面上。如图所示，某客机紧急出口离地面高度AB=3.0m，斜面气囊长度AC=5.0m，要求紧急疏散时乘客从气囊上由静止下滑到地面的时间不超过2s，忽略空气阻力，g取10m/s 2，求：（1）乘客在气囊上滑下的加速度至少为多大？（2）乘客和气囊间的动摩擦因数不得超过多大？