國中自然2下ch2-2氧化與還原
Quiz
•
Chemistry
•
8th Grade
•
Practice Problem
•
Hard
翰林出版國中自然 翰林出版國中自然
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8 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
在CuO+H2→Cu+H2O反應式中,下列何者可以使其他物質產生還原反應?
CuO
H2
Cu
H2O
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
三個相同的廣口瓶內分別裝有氦氣、氧氣和二氧化碳,今將點燃的鎂帶分別放入各瓶中,發現鎂帶在甲、乙瓶中繼續燃燒,在丙瓶中則熄滅,且在甲瓶中同時有黑色與白色的物質產生,試問甲瓶中裝有何種氣體?
氦氣
二氧化碳
氧氣
無法判斷
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
已知Na、Mg、C、Cu對氧的活性順序是:Na>Mg>C>Cu,下列四組物質,何者會發生氧化還原反應?
C+Na2O
Mg+Na2O
C+MgO
C+CuO
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
「金屬鈉在二氧化碳中可以燃燒,所以燃燒不一定只發生在空氣或純氧中。」關於此敘述的判斷及解釋,下列何者正確?
敘述正確,鈉可與二氧化碳反應產生氧氣,幫助燃燒
敘述正確,鈉的活性大於碳,可與二氧化碳反應生成碳粒
敘述錯誤,物質燃燒需要氧氣,在二氧化碳中不會燃燒
敘述錯誤,鈉和銅一樣都是金屬,無法燃燒
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
在CuO+H2→Cu+H2O反應式中,下列何者被氧化?
CuO
H2
Cu
H2O
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
硫酸銅水溶液加入下列何種物質,即可將銅離子還原成金屬銅?
鐵棒
氫氧化鈉
銀線
7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
設A、B、C代表三種元素,AO、BO、CO分別代表其氧化物。AO+B→BO+A,AO+C→無反應;依上列反應式判斷此三種元素對氧的活性順序何者正確?
B>A>C
A>C>B
C>B>A
C>A>B
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