您所在的当前位置：高中化学试题 >

氯及其化合物

> 将Cl 2制成漂白粉的最主要目的是：①使它转变成较易溶于水的物质 ②转变成较稳定、便于贮存的物质 ③提高氯的质量分数 ④提高漂白能力 A．①②③ B．②④ C．②③ D．②

问题：

发布时间：2024-09-12

将Cl ₂制成漂白粉的最主要目的是：①使它转变成较易溶于水的物质 ②转变成较稳定、便于贮存的物质 ③提高氯的质量分数 ④提高漂白能力

A．①②③ B．②④ C．②③ D．②

参考答案：

提问用户：B4***Ic3

可能感兴趣的题目：

1 国家气象局每天为电视新闻提供的卫星云图主要使用了( ) ①遥感技术 ②地理信息技术 ③全球定位技术 A．①②③ B．①③ C．②③ D．①②
2 如图所示，箱子放在光滑的水平地面上，箱内有一质量为m的铁球以速度v向左壁碰去，来回碰几次后停止在箱子，则下列说法正确的是（） A．箱子的动量始终为零 B．铁球和箱子的动量大小相等，方向相反 C．最后箱子的动量向左 D．铁球和箱子的总动量为mv ，向左
3 我国下列农产品主要产于新疆维吾尔自治区的是 A.葡萄 B.牡蛎 C.椰子 D.菠萝
4 ________ the most apples, Li Lei, Jim or Lily? A.Whose has B.Who has C.Which have D.Who have
5 完形填空。 I used to hate being called upon in class mainly because I didn"t like attention drawn to myself. And unless otherwise assigned(指定)a seat by the teacher, I always chose to sit at the__1__ of the classroom. All this__2__after I joined a sports team. It began when a teacher suggested I try out for the basketball team. At first I thought it was a crazy__3__because I didn"t have a good sense of balance, nor did I have the __4__in keeping pace with the others on the team and they would tease me. But for the teacher who kept insisting on my "__5__for it", I wouldn"t have decided to give it a try. Getting up the courage to go to the tryouts was only the__6__of it! When I first started attending the practice sessions, I didn"t even know the rules of the game, much__7__what I was doing. Sometimes I"d get__8__ and take a shot at the wrong direction—which made me feel really stupid__9__, I wasn"t the only one "new" at the game, so I decided to__10__on learning the game, do my best at each practice session, and not be too hard on myself for the things I didn"t know "just yet". I practiced and practiced. Soon I knew the rules and the "moves". Being part of a team was fun and__11__. Very soon the competitive part in me was winning over my lack of__12__. With time, I learned how to play and made friends in the process. I never had so much fun! With my__13__self-confidence comes more praise from teachers and classmates. I have gone from "__14__" in the back of the classroom and not wanting to call attention to myself, to raising my hand — even when I sometimes wasn"t 100 percent__15__I had the right answer. Now I have more self-confidence in myself. ( )1. A. front ( )2. A. continued ( )3. A. idea ( )4. A. interest ( )5. A. going ( )6. A. point ( )7. A. less ( )8. A. committed ( )9. A. Interestingly ( )10. A. focus ( )11. A. puzzling ( )12. A. fun ( )13. A. expressed ( )14. A. dreaming ( )15. A. lucky B. middle B. changed B. plan B. chance B. looking B. half B. later B. inspired B. Fortunately B. act B. confusing B. enthusiasm B. improved B. playing B. happy C. corner C. settled C. belief C. competence C. cheering C. rest C. worse C. embarrassed C. Obviously C. rely C. motivating C. confidence C. preserved C . relaxing C. sure D. back D. started D. saying D. difficulty D. applying D. basis D. further D. confused D. hopefully D. try D. tiring D. interest D. recognized D. hiding D. satisfied
6 Don’t be _______ by products promising to make you lose weight quickly. A．taken off B．taken out C．taken away D．taken in
7 要对“三北” 地区荒漠化土地发展进行宏观监控，宜选用的地理信息技术是 A．地理信息系统（GIS） B．全球定位系统（GPS） C．卫星遥感定期拍摄 D．人工科考察
8 已知立方体中，点为上底面的中心，若，则的值分别为（） A． B． C． D．
9 如图所示，是两条水平放置彼此平行的金属导轨，匀强磁场的磁感线垂直导轨平面.导轨左端接阻值的电阻，电阻两端并联一电压表，垂直导轨跨接一金属杆的质量，电阻 . 与导轨间动摩擦因数μ ，导轨电阻不计.现用的恒力水平向右拉，使之从静止开始运动，经时间后，开始做匀速运动，此时电压表表示数 .重力加速度 .求：（1）匀速运动时，外力的功率；（2）杆加速过程中，通过的电量；（3）杆加速运动的距离.
10 倾角为30°的长斜坡上有C、O、B三点，CO =" OB" = 10m，在O点竖直地固定一长10 m的直杆AO。A端与C点间连有一光滑的钢绳，且穿有一钢球（视为质点），将此球从A点由静止开始沿钢绳滑到钢绳末端，如图所示，则小球在钢绳上滑行的时间t AC为（取g = 10m/s 2）（） A．2s B． s C．1s D．4s