1.简答题- (共1题)
(1)写出一氧化碳与一氧化氮反应的文字表达式:__________________。
(2)列举提高空气质量的另外两个措施_______________________。
2.单选题- (共11题)
A.⑤⑦③②①④⑥ | B.①⑦③②⑤④⑥ | C.⑦②③①④⑤⑥ | D.⑦③①②④⑥⑤ |

A. 集气瓶中的气体可能是二氧化碳;
B. 集气瓶中的气体可能是空气;
C. 集气瓶中的气体一定是氧气;
D. 集气瓶中的气体一定是氮气;
A.把盛有红磷的燃烧匙伸人盛有氧气的集气瓶中,磷立即燃烧 |
B.硫在空气中燃烧,发出蓝紫色火焰 |
C.木炭在氧气中燃烧比在空气中燃烧更旺,发出白光,并放出热量 |
D.红磷在氧气中燃烧生成一种白色气体 |
A.易溶于水 | B.可能极易与氧气反应 | C.易与水反应 | D.有害无利 |
3.选择题- (共4题)
The food in White Rose Restaurant was cheap and good, but nobody seemed to want to eat there. There were very few people going to eat there. The owner was very worried about it.
Then he thought of a good idea. A few weeks later, his restaurant was always full of men and their girlfriends. Whenever a gentleman came with a lady, a kind waiter would give each of them a beautiful menu. The menus looked exactly the same on the outside, but there was an important difference inside. The menu that the waiter handed to the man gave the correct price for each dish and each bottle of wine, while the menu that he handed to the lady gave a much higher price! So when the man calmly ordered dish after dish and wine after wine, the lady thought he was much more generous than he really was! The man could make a good impression on the lady.
4.填空题- (共4题)
根据以上叙述,可归纳出:
(1)酒精的物理性质是______。(2)化学性质是________。
(1)_________________。(2)_________________。(3)_________________。
5.实验题- (共2题)

(1)指出仪器名称:①_______________;②_______________。
(2)若用高锰酸钾制取氧气,应选用的的发生装置是________(填字母)。你认为该装置中还缺少_____________。
(3)若用过氧化氢制取氧气,还需要用到___________(填名称),其起____________作用,能否用高锰酸钾制取氧气后的剩余物代替该物质_________(填“能”或“否”)。
(4)试管口朝下倾斜的原因是:_____________。
(5)实验结束后,应先撤_____________,后撤_____________。

①将图中的集气瓶分为5等份,并作好标记。
②在带橡皮塞和导管的燃烧匙内装入足量的红磷,将
导管上的止水夹夹紧,在酒精灯上点燃红磷,并立即
伸入集气瓶内,塞紧橡皮塞。
③充分反应后,待集气瓶冷却至室温,打开止水夹。
请回答下列问题:
(1)该实验中红磷需稍过量,目的是_______。
(2)步骤③中打开止水夹后观察到的现象是_______,由此可得出空气中氧气的体积分数约为_____。
(3)该实验可推论出氮气__________(填“易”或“难”)溶于水和其化学性质________(填“活泼”或“不活泼”)的结论。
(4)若将红磷换成炭粉,该实验能否获得成功?_______。
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【1】题量占比
简答题:(1道)
单选题:(11道)
选择题:(4道)
填空题:(4道)
实验题:(2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:0
5星难题:0
6星难题:7
7星难题:0
8星难题:6
9星难题:5