题目

氧化氢(HCl)的水溶液是盐酸，溴化氢(Br)的水溶液是氢溴酸，某化学小组为了探究溴化氢的性质，做了如图所示的实验：根据上述的操作和相关现象分析，下列描述错误的是( ) A . 溴化氢的密度比空气大 B . 溴化氢溶于水使试管内压强减小 C . 若将紫色石蕊溶液改为酚酞溶液，可看到蓝色喷泉 D . 试管内液体的pH<7-__________?-Very interesting. I enjoy it very much. [     ]A. What do you think of this bookB. Do you like this bookC. Where do you read this bookD. When do you read this book