下列由相关实验现象所推出的结论正确的是(    ) A.Cl2、SO2均

下列由相关实验现象所推出的结论正确的是(   

ACl2SO2均能使品红溶液褪色,说明二者均有氧化性

B.向溶液中滴加酸化的Ba(NO3)2溶液出现白色沉淀,说明该溶液中一定有SO

CFe与稀HNO3、稀H2SO4反应均有气泡产生,说明Fe与两种酸均发生置换反应

D.分别充满HClNH3的烧瓶倒置于水中后液面均迅速上升,说明二者易溶于水

答案

D

相关题目

—My English teacher visited Australia last summer.—Which city did he visit?
—My English teacher visited Australia last summer.—Which city did he visit?—                      .A. Paris.         B. Washington.    C. London.      D. Sydn
已知关于的方程有两个不相等的实数根. 1.(1)求的取值范
已知关于的方程有两个不相等的实数根. 1.(1)求的取值范围; 2.(2)若为符合条件的最大整数,求此时方程的根. 
—Our teacher will show us ______ the text with the machine. —That's great
—Our teacher will show us ______ the text with the machine. —That's great.     A.how to copy        B.when to hold        C.where to mend    D.who to prove
2016年11月,我国首枚大型运载火箭“长征5号”成功发射.该
2016年11月,我国首枚大型运载火箭“长征5号”成功发射.该火箭主发动机中所用的燃料液肼(N2H4)属于 A.单质          B.氧化物         C.
 He was watching her doing it with a ________ look on her face, as if to say t
 He was watching her doing it with a ________ look on her face, as if to say that she would not change her mind.    A. reliable       B. determined     C. regular       D. stra
He is famous both ______ a novelist and a poet but he is more famous ______ his
He is famous both ______ a novelist and a poet but he is more famous ______ his novels. A. for; as    B. with; for   C. as; for    D. like; as
如图所示,为一个实验室模拟货物传送的装置,A是一个表面
如图所示,为一个实验室模拟货物传送的装置,A是一个表面绝缘质量为1kg的小车,小车置于光滑的水平面上,在小车左端放置一质量为0.1kg带电量为q=1×
.下列金属单质能与硫酸铜反应的是( ) A.银   B.金  
.下列金属单质能与硫酸铜反应的是( ) A.银   B.金   C.铜   D.锌

最新题目