決勝時刻—氧化還原反應

Quiz
•
Chemistry
•
10th - 12th Grade
•
Hard
Teemo Teemo
Used 16+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
<練習題>請問什麼鬼最愛叫別人借過?
睏嘎並鬼
餓死鬼
新鬼
舊鬼
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
化學SENSE小檢測−看看這張圖,猜一句成語
成千上萬
萬紫千紅
燈紅酒綠
青黃不接
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列劃線部分元素之氧化數(括號內之數字),何者完全正確?
H2SO5(+8),Na2S2O3(+2)
NaH(+1),H2(0)
OF2(+2),KO2(-1/2)
HNO3(+5),N2O(-1)
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列有關氧化數的敘述,何者正確?
過渡元素皆具有多種氧化數
金屬的氧化數必為正,非金屬的氧化數必為負
典型元素中除F以外,其他元素的最高氧化數均等於族數
氧化數若出現分數,此化合物中之該元素必有兩個(或以上)不同的氧化數
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列哪個反應屬於氧化還原反應?
NaOH + HCl → NaCl + H2O
3O2 → 2O3
PCl3 + Cl2 → PCl5
2CrO42–(黃色) + 2H+ → Cr2O72–(橘色) + H2O
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列何者屬於自身氧化還原反應?
2KNO3 → 2KNO2 + O2
S + 2H2SO4 → 3SO2 + 2H2O
3I2 + 6OH– → 5I– + IO3– + 3H2O
Na2SO3 + H2SO4 → Na2SO4 + SO2 + H2O
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
有關氧化還原反應的敘述﹐何者錯誤?
氧化是物質失去電子的反應﹐還原是物質得到電子的反應
氧化還原反應中得失的電子數相等
氧化劑失去電子﹐還原劑獲得電子
氧化反應及還原反應不能單獨發生
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