挑战习题
1
/5
单选题
难度:
1.空气中含量较多且化学性质比较活泼的气体是
A
氧气
B
氮气
C
二氧化碳
D
水蒸气
提示1:
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正确答案:
QQ==
56m65rCU5Lit5ZCr6YeP5pyA5aSa55qE5piv5rCu5rCU77yM5oCn6LSo56iz5a6a77yb5ZCr6YeP56ys5LqM5aSa55qE5piv5rCn5rCU77yM5oCn6LSo5rS75rO844CC
2
/5
单选题
难度:
2.空气的成分是①氧气、②氮气、③稀有气体、④二氧化碳及其他。按体积分数由多到少的顺序排列正确的是
A
①②③④
B
②①③④
C
①②④③
D
②①④③
提示1:
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正确答案:
Qg==
56m65rCU5Lit55qE5oiQ5YiG5oyJ54Wn5L2T56ev6K6h566X77yM5aSn57qm5piv5rCu5rCUNzgl77yM5rCn5rCUMjEl44CB56iA5pyJ5rCU5L2TMC45NCXjgIHkuozmsKfljJbnorMwLjAzJeWFtuS7luawlOS9k+WSjOadgui0qDAuMDMl44CC5Zug5q2k5o6S5bqP5Li677ya4pGh4pGg4pGi4pGj77yMQumAiemhueato+ehruOAgg==
3
/5
单选题
难度:
3.稀有气体过去曾被人们称作“隋性气体”,是因为
A
稀有气体在空气中含量少
B
稀有气体用途广泛
C
稀有气体性质不活泼
D
稀有气体非常宝贵
提示1:
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正确答案:
Qw==
4oCc5oOw5oCn4oCd5piv5oyH56iA5pyJ5rCU5L2T55qE5oCn6LSo5LiN5rS75rO844CC5YW25LuW5LiJ5Liq6YCJ6aG55LiO4oCc5oOw5oCn4oCd5peg5YWz44CC
4
/5
单选题
难度:
4.在我国许多城市里,空气质量监测的指标主要包括: ①悬浮颗粒物;②氧气;③二氧化碳;④一氧化碳; ⑤氮气;⑥二氧化硫;⑦稀有气体;⑧氮氧化物。 其中正确的是
A
①④⑥⑧
B
②④⑦
C
③④⑥
D
①②③④
提示1:
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正确答案:
QQ==
5oiR5Zu955uu5YmN6K6h5YWl56m65rCU5rGh5p+T5oyH5pWw55qE6aG555uu5pqC5a6a5Li677ya5LqM5rCn5YyW56Gr44CB5LiA5rCn5YyW56Kz44CB5LqM5rCn5YyW5rCu44CB5Y+v5ZC45YWl6aKX57KS54mp5ZKM6Iet5rCn562J44CC
5
/5
单选题
难度:
5.某同学用图所示装置粗略测定空气中氧气的体积分数,烧杯上方玻璃管中部有一可左右移动的活塞,活塞左端密封有空气,活塞右端玻璃管口与空气相通,开始时活塞在刻度5处,向烧杯内加水与生石灰反应放热使白磷燃烧(白磷充足),实验结束后活塞停留在
A
6处
B
5处
C
4处
D
3处
提示1:
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正确答案:
Qw==
5YWF6Laz55qE55m956O35bCG5rCn5rCU56m65rCU5Lit55qE5rCn5rCU5YWo6YOo5raI6ICX77yM5LqM56m65rCU5Lit55qE5rCn5rCU5Y2g56m65rCU5L2T56ev55qE5LqU5YiG5LmL5LiA77yM5Zug5q2k5rS75aGe5bqU6K+l5ZCR5bem56e75Yqo5oC75L2T56ev55qE5LqU5YiG5LmL5LiA77yM5Lmf5bCx5piv5YGc5ZyoNOWkhOOAguaVhemAieaLqUPpgInpobnjgII=