某溶液中的离子只有NH4+、Cl﹣、H+和OH﹣四种，下列描述正确的是

题干

某溶液中的离子只有NH₄⁺、Cl^﹣、H⁺和OH^﹣四种，下列描述正确的是（）

A：该溶液中的溶质只有NH₄Cl

B：当溶液呈碱性时：c（NH₄⁺）+c（H⁺）＜c（Cl^﹣）+c（OH^﹣）

C：溶液中离子浓度大小关系可能为：c（Cl^﹣）＞c（NH₄⁺）＞c（OH^﹣）＞c（H⁺）

D：该溶液可能由pH=12的氨水与pH=2的HCl溶液等体积混合而成

上一题下一题 0.0难度选择题更新时间:2020-01-11 07:21:28

答案(点此获取答案解析）

D

同类题2

My friend Tony is an American 1. He is ten years old. He lives2 his family in China now. There are 3 people in his family; his mother Mrs. Green, his father Mr. Green and his little sister Amy. He has a white cat. 4 name is Betty. Look！Amy is playing 5Betty. His father, Mr. Green, is watching TV. His mother is doing housework. What about Tony? He is doing 6 Chinese homework. He can't 7Chinese well, but he likes Chinese very much. Tony's 8 works in a TV station. His father works in a school as an 9 teacher. Tony and his sister 10 to the same school.

题干

答案(点此获取答案解析）

同类题1

同类题2

同类题3

同类题4

同类题5