2014年鲁教版九年级化学下册 7.1 酸及其性质练习卷

适用年级:初三
试卷号:314235

试卷类型:课时练习
试卷考试时间:2017/8/18

1.计算题(共1题)

1.
已知R+H2SO4=RSO4+H2↑,若13克金属R与足量稀硫酸完全反应可制得0.4克氢气,试分析:
(1)RSO4中R的化合价为
(2)制得的氢气可用浓硫酸干燥,原因是  
(3)通过计算确定R的相对原子质量。

2.单选题(共4题)

2.
下列化学方程式符合事实的是( )
A. 铁粉与稀盐酸混合后有大量气泡产生:2Fe+6HCl=2FeCl3+3H2
B. 稀盐酸洒到大理石表面上有气泡产生:CaCO3+2HCl=CaCl2+H2O+CO2
C. 用盐酸除锈:Fe2O3+HCl=FeCl2+H2O
D. 黑色的氧化铜粉末与稀硫酸混合后,溶液变成蓝色:CuO+H2SO4=CuSO4+H2
3.
下列化学反应中属于复分解反应的是(  )
A.2Fe2O3+3C4Fe+3CO2
B.3Fe+2O2Fe3O4
C.H2CO3=H2O+CO2
D.K2CO3+CaCl2=CaCO3↓+2KCl
4.
盐酸、稀硫酸在水溶液中都能产生H,故有许多共同的性质。下列有关叙述正确的是(  )
A.打开盛有浓盐酸和浓硫酸的试剂瓶瓶塞,在瓶口都有白雾
B.稀盐酸和稀硫酸都可用于除铁锈
C.浓盐酸、浓硫酸都可用来干燥氧气
D.在稀盐酸、稀硫酸中加入碳酸钙粉末,粉末都会逐渐溶解,且液体变为黄色
5.
物质X可发生下列所示的两个反应,则X可能是(  )
①X+金属→盐+H2 ②X+金属氧化物→盐+H2O
A.CaOB.CO2C.COD.H2SO4

3.选择题(共1题)

6.通读全文,根据短文内容的理解,选择最佳答案填空。   

    I have a friend. He is a boy. His name is Nick. He is from England. Nick is a sports fan. He likes 1 every kind of games. He likes basketball, football, tennis, badminton 2 swimming. Nick is good at 3 football. Yang Chen is his favourite football player. Nick is a member 4 the Football Club. When he goes shopping, he always 5 newspapers 6sports and he often reads sports news. His school is very big and beautiful. There is a football tennis court and a swimming pool in his school. He usually plays football 7 his friends after school. Nick says that he wants to 8 a football player when he grows up. Nick often goes to the stadium (体育馆) to watch the football games 9 the weekend. He 10 want to miss any match.

试卷分析
  • 【1】题量占比

    计算题:(1道)

    单选题:(4道)

    选择题:(1道)

  • 【2】:难度分析

    1星难题:0

    2星难题:0

    3星难题:0

    4星难题:0

    5星难题:0

    6星难题:4

    7星难题:0

    8星难题:0

    9星难题:0