中二科學科 第7課 空氣
Quiz
•
Chemistry
•
7th Grade
•
Hard
Cheung Man
Used 149+ times
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14 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
空氣由多種氣體組成。哪種氣體含量最高?
氮
氧
二氧化碳
貴氣體
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
細閱下圖。下列哪種氣體有助瓶內的蠟燭燃燒?
氮
氧
二氧化碳
水汽
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
柏翹點燃三支大小相同的蠟燭,然後放進盛有不同氣體的集氣瓶中,如下圖所示。三個集氣瓶中那一個最快熄滅?
1
2
3
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下圖顯示一支燃燒中的蠟燭被放置於水槽中,並以鐘形罩蓋著。在實驗過完結時,可以觀察到以下哪項變化?
水位上升至位置(1)。
水位上升至位置(2)。
水位上升至位置(3)。
水位上升至位置(4)。
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
以下哪項敘述最能顯示出呼出的空氣和未經呼吸的空氣的分別?呼出的空氣
只含有較多二氧化碳
含有較多氧及較少二氧化碳
含有較多二氧化碳、較少氧、較多水汽及較高溫度
較少氮及較少氧
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
在沒有二氧化碳的情況下,碳酸氫鹽指示劑會呈甚麼顏色?
黃色
紅色
無色
紫色
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列哪一項有關二氧化碳不正確?
使帶有餘燼的木條重燃
令石灰水變為混濁
令碳酸氫鹽指示劑變為黃色
不能令無水氯化鈷試紙變粉紅
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