您所在的当前位置：高中化学试题 >

离子共存

> 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+、MnO4-、I-、Na+ B．Ag+、NO3-、Cl-、K+ C．K+、Ba2+、Cl-、SO42- D．Cu2+、NH4+、Br-、SO42-

问题：

发布时间：2024-09-07

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⁺、MnO₄^-、I^-、Na⁺ B．Ag⁺、NO₃^-、Cl^-、K⁺

C．K⁺、Ba²⁺、Cl^-、SO₄^2- D．Cu²⁺、NH₄⁺、Br^-、SO₄^2-

参考答案：

提问用户：Ox***I2H

可能感兴趣的题目：

1 下图是一个制取氯气并以氯气为原料进行特定反应的装置：（几种气体的溶解度：常温常压下，1体积水可溶解CO 2、Cl 2、HCl分别为1、2、500体积）（1）A是氯气发生装置，其中的离子反应方程式为；（2）要将C装置接入B和D之间，正确的接法是a→______，______ →d。（3）实验开始时，先点燃A处的酒精灯，打开旋塞K，让Cl 2充满整个装置，再点燃D处酒精灯，连接上E装置。Cl 2通过C瓶后再进入D。D装置的硬质玻璃管内盛有炭粉，发生氧化还原反应，其产物为两种气体，且体积比为1∶4。试写出D中发生反应的化学方程式，装置C的作用是；为了使C装置发挥更好的作用，可向烧杯中加入浓硫酸，加入浓硫酸的作用是。（4）在A、B、C、D、E装置中有一处需要改进，说明需要改进的理由并画出改进后的装置图。（5）D处反应完毕后，关闭旋塞K，移去酒精灯，但由于余热的作用，A处仍有Cl 2产生，此时B中的现象是。
2 不定项选择第一次通过实验比较准确的测出引力常量的科学家是（） A．牛顿 B．伽利略 C．胡克 D．卡文迪许
3 函数 f(x)=cos πx 2 cos π(x-1) 2 的最小正周期为______．
4 如图所示，是甲、乙两车的运动图象，下列说法不正确的是 A.甲乙两车做匀速运动 B.当运动时间为2h时，甲车运动了120km C.V甲＞V乙 D.乙的速度为40km/h，合144m/s
5 德州市经济实力最强的县、市、区是 A.乐陵市 B.德城区 C.禹城市 D.齐河县
6 如图所示，长度L=10m的水平传送带以速率沿顺时针方向运行，质量的小物块（可视为质点）以的初速度从右端滑上传送带。已知物块与传送带之间的动摩擦因数，重力加速度，则物块 ( ) A．相对地面向左运动的最大距离为4.5m B．相对地面向左运动的最大距离为9m C．从滑上传送带到滑下传送带所用的时间2.5 s D．从滑上传送带到滑下传送带所用的时间6.25 s
7 阅读理解。 When Siva Kalyan was born, his backbone was deformed(畸形的)resulting in a lifelong difficulty in walking. But that hasn"t stopped the nine-year-old from becoming a prodigy(天才). Until he was three-and-a-half years old, Siva could not even crawl. Wanting the best treatment for their son, Siva"s parents moved with him from India to Australia and later to the USA. In the USA, his parents enrolled(使入学)him in the second grade based on his age. But his teachers soon realized they had a genius. Siva was then tested for the eighth grade, but it was soon found out that he was actually qualified for college courses. As one advanced course was not enough, the brilliant boy is now taking two courses from Stanford University. Due to the treatment he received, Siva"s physical condition has improved as well. But none of this "just happened". It was his parents" understanding and correct guidance, and the loving care of his grandparents that contributed to the growth of the genius. Siva"s highly educated and hardworking family has brought him up on the basis of certain principles. The family believes that once a strong foundation is built for the child in English and mathematics, the child is equipped to master any other subject, law, history, or engineering. It is equally important to recognize the strengths of a child rather than forcing the child to do things that he may not want to do. Siva"s parents helped. Siva focus his energies on his strength, which is mathematics. At the same time they took care to see that he had friends to play with and enjoyed a few recreational activities. The only activity that"s restricted for Siva is viewing television. Siva watches TV only for 30 minutes a day and video games are a bonus for special occasions. Thanks to his mother who is a singer, Siva has also learned music and even won the first and second prize at two competitions. In sports, he likes to swim. He began to learn swimming to strengthen his muscles, and by the age of eight he was able to swim a kilometer in both the backstroke and the freestyle. 1. Why did Siva"s parents move to the USA? A. They wanted to give their son the best education. B. They wanted their son to receive the best treatment. C. They weren"t used to life in India or Australia. D. They wanted their son to go to Stanford University. 2. The underlined word "this" in the fourth paragraph refers to the fact that . A. Siva"s parents enrolled him in the second grade B. Siva"s physical condition improved C. Siva was tested for the eighth grade D. Siva became a genius despite his disability 3. The family believes that . A. English and mathematics are easier to learn than other subjects B. it is important to recognize the strengths of a child C. a child must learn English rather than law or history D. forcing a child to do things is also quite important 4. What can we learn about Siva? A. He is really good at mathematics. B. He has no friends to play with. C. He is not allowed to play video games. D. He learned swimming from his mother. 5. The text is mainly about . A. the growth of a disabled child prodigy B. certain principles to bring up a child C. the special ways to train a genius D. the influence of parents on their child
8 The new tax would force companies to energy-saving measures． A．adopt B．adjust C．adapt D．accept
9 我国著名的敦煌莫高窟中有一首《浣溪沙》，其中有“满眼风波多闪烁，看山恰似走来迎．仔细看山山不动，是船行”的诗句，其中“是船行”这句的参照物是 A.高山 B.乘客 C.大地 D.船
10 ________, I think, and you will settle the problem. [ ] A. So long as you keep up your spirits B. If you make your effort C. Making great efforts D. A bit more effort

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+、MnO4-、I-、Na+ B．Ag+、NO3-、Cl-、K+ C．K+、Ba2+、Cl-、SO42- D．Cu2+、NH4+、Br-、SO42-

可能感兴趣的题目：

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⁺、MnO₄^-、I^-、Na⁺ B．Ag⁺、NO₃^-、Cl^-、K⁺

C．K⁺、Ba²⁺、Cl^-、SO₄^2- D．Cu²⁺、NH₄⁺、Br^-、SO₄^2-