下列叙述中,错误的是A.虽然固体氯化钠不能导电,但氯化钠是电解

下列叙述中,错误的是

A.虽然固体氯化钠不能导电,但氯化钠是电解质

B.纯水的pH随温度的升高而减小

C.在醋酸钠溶液中加入少量氢氧化钠,溶液中c(OH-)增大

D.在纯水中加入少量硫酸铵,可抑制水的电离

答案

D  本题考查水的电离平衡。固体氯化钠中离子不能自由移动,但熔融和溶于水能导电,为电解质,A对;水的电离为吸热反应,升高温度,水的电离程度增大,c(H+)增大,pH减小,B对;醋酸钠溶液中加入少量氢氧化钠,水解平衡向逆反应方向移动,但c(OH-)增大,C对;硫酸铵由于的水解,促进了水的电离,D错。

相关题目

关于自由落体运动,下列说法正确的是(    )    A.物
关于自由落体运动,下列说法正确的是(    )    A.物体竖直向下的运动就是自由落体运动    B.加速度等于重力加速度的运动就是自由落体运动
下列说法中,错误的是…………………………………………
下列说法中,错误的是……………………………………………………………………(    )    a.平行四边形的对角线相互平分               
What should you think about when trying to find your career? You are probably b
What should you think about when trying to find your career? You are probably better at some school subjects than others. These may show strengths that you can use in your work. A boy who is good a
The devastation of Typhoon Morakot over Taiwan and eastern China is a reminder t
The devastation of Typhoon Morakot over Taiwan and eastern China is a reminder that the northwest Pacific is the most dangerous region in the world for tropical storms.The worst of these are typhoon
在如下程序框图中,已知:,则输出的是 (A) (B)  (C
在如下程序框图中,已知:,则输出的是 (A) (B)  (C)  (D)
点所在的象限是                             
点所在的象限是                                                                  ( ).第一象限    .第二象限
Once a donkey fell into a deep well. The animal cried loudly for hours,but th
Once a donkey fell into a deep well. The animal cried loudly for hours,but the owner couldn't think out what to do   61   it. Finally,he decided that the animal was old and that the well nee
循环农业是美丽乡村建设的途径之一。下图示意采用循环农
循环农业是美丽乡村建设的途径之一。下图示意采用循环农业模式。 34.最适宜该模式的是     A. 河套平原    B. 黄淮平原       C. 辽东丘陵   

最新题目