1.单选题- (共5题)
A.原子最外层电子数为2的元素一定处于周期表IIA族 |
B.某元素原子核外的电子数为55,则它是第六周期IA族元素 |
C.元素周期表中位于金属和非金属分界线附近的元素属于过渡元素 |
D.除短周期外,其它周期均为18种元素,副族元素没有非金属元素 |
A.此X元素的气态氢化物的化学式为HX,在常温下很稳定 |
B.其单质带有金属光泽,具有强氧化性,可与KI发生置换反应生成I2 |
C.其单质的分子式为X2,易溶于有机溶剂 |
D.AgX是一种有色的易溶于水的化合物 |

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C.![]() | D.![]() ![]() |
A.含金属元素的离子一定是阳离子 |
B.应用蒸馏的方法,可以分离沸点相差较大的液体混合物 |
C.氯水和过氧化钠都具有漂白作用,其漂白原理相似 |
D.氨能被氧气氧化,生成一氧化氮,进而氧化成二氧化氮,用来制造硝酸 |
A.Cl2、ClO2、漂白粉都可用于自来水的杀菌消毒 |
B.硫的氧化物和氮的氧化物是形成酸雨的主要物质 |
C.化石燃料的直接利用,促进了“低碳”经济的发展 |
D.雷雨天气有利于农作物的生长,其中包含了氮的固定的过程 |
2.选择题- (共2题)
In American schools there is something called Homecoming Day. Many high schools and colleges with a football team have a homecoming game. This can be the most important thing of the year except graduation or commencement(颁授学位典礼) day. Students plan Homecoming Day for many weeks before the day.
Several days before Homecoming, students start to decorate the schoool. There are signs to wish luck to the team, and many other signs to welcome all the students. Many people still come to Homecoming twenty or thirty years after they leave school.
During the day people like to look for teachers that they remember from long ago. Often they see old friends and they talk together about those happy years in school.
Everyone soon comes to watch the football game. When the game is half over, the band comes onto the field and plays school songs. Another important moment is when the Homecoming Queen or King appears. All the students vote a most popular student Homecoming Queen or King. It is a great honor to be chosen.
Homecoming is a happy day, but it is not perfect unless the football team wins the game. Even if the team loses, the students still enjoy Homecoming. Some stay at the school to dance, and others go to a party. For everyone it is a day worth remembering.
In American schools there is something called Homecoming Day. Many high schools and colleges with a football team have a homecoming game. This can be the most important thing of the year except graduation or commencement(颁授学位典礼) day. Students plan Homecoming Day for many weeks before the day.
Several days before Homecoming, students start to decorate the schoool. There are signs to wish luck to the team, and many other signs to welcome all the students. Many people still come to Homecoming twenty or thirty years after they leave school.
During the day people like to look for teachers that they remember from long ago. Often they see old friends and they talk together about those happy years in school.
Everyone soon comes to watch the football game. When the game is half over, the band comes onto the field and plays school songs. Another important moment is when the Homecoming Queen or King appears. All the students vote a most popular student Homecoming Queen or King. It is a great honor to be chosen.
Homecoming is a happy day, but it is not perfect unless the football team wins the game. Even if the team loses, the students still enjoy Homecoming. Some stay at the school to dance, and others go to a party. For everyone it is a day worth remembering.
3.填空题- (共1题)

(1)写出下列序号表示的元素的符号:
①_________⑤__________⑧__________。
(2)上述10种元素中,金属元素有_____种。
(3)上述10中元素中,最不活泼的元素是________________(用元素名称表示)。
(4)⑨在周期表中的位置是___________。
(5)实验室制取④的最简单氢化物的化学反应方程式是:___________;单质⑦与水反应的离子方程式是_______________。
4.实验题- (共1题)

(1)写出甲中反应的离子方程式:______________;
(2)说明NO2具有氧化性的现象是_________________;
(3)说明NO具有还原性的操作和现象是______________;
(4)小组一成员对实验设计提出了质疑,他认为乙中的现象不足以证明NO2的氧化性,他的理由除了硝酸具有挥发性外,还有可能是_____________________________________;经小组讨论,他们设计了以下方案,其中合理的是__________
A.NO2与HCl气体混合 B.NO2与H2S气体混合 C.NO2通入Na2S溶液中
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【1】题量占比
单选题:(5道)
选择题:(2道)
填空题:(1道)
实验题:(1道)
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【2】:难度分析
1星难题:0
2星难题:0
3星难题:0
4星难题:1
5星难题:0
6星难题:3
7星难题:0
8星难题:3
9星难题:0