氧化還原反應
Quiz
•
Chemistry
•
10th Grade
•
Practice Problem
•
Hard

Siu Law
Used 24+ times
FREE Resource
Enhance your content in a minute
8 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
以下哪種或哪些還原劑可把酸化高錳酸鉀褪色?
(1) 硫酸鐵(II)溶液
(2) 硫酸鋅溶液
(3) 二氧化硫
只有(1)
只有(2)
只有(1)和(3)
只有(2)和(3)
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
HSO4-中的硫的氧化數是多少?
+2
+4
+6
-2
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
參照以下方程式:
3CuO(s) + 2NH3(g) → 3Cu(s) + N2(g) + 3H2O(l)
以下哪項或哪些陳述正確?
(1) 氨氣作為氧化劑。
(2) 氮的氧化數由-3變為0。
(3) 銅的氧化數由+2變為0。
只有(1)
只有(2)
只有(1)和(3)
只有(2)和(3)
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
以下的平衡方程式中,x、y和z的數值是多少?
2MnO4-(aq) + xBr-(aq) + yH+(aq) → 2Mn2+(aq) + 5Br2(aq) + zH2O(l)
x: 2 y: 2 z: 1
x: 10 y: 8 z: 4
x: 5 y: 8 z: 4
x: 10 y: 16 z: 8
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
以下哪項方程式中畫有底線的反應物進行還原反應?
PbO(s) + CO(g) → Pb(s) + CO2(g)
Ca(OH)2(aq) + CO2(g) → CaCO3(s) + H2O(l)
2H2S(g) + SO2(g) → 3S(s) + 2H2O(l)
KClO(aq) + SO2(g) + H2O(l) → KCl(aq) + H2SO4(aq)
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
以下哪種化合物中的氮的氧化數最大?
N2H4
NO
HNO
N2O5
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
以下的離子半方程式中 y 的值是多少?
Cr2O72-(aq) + 14H+(aq) + ye- → 2Cr3+(aq) + 7H2O(l)
2
4
6
8
8.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
某氧化還原反應中,溴離子按以下方程式在酸性介質下被轉化為溴水。
BrO3-(aq) + H+(aq) + e- → Br2(aq) + H2O(l)
要平衡離子半方程式,需要H+(aq) 和H2O(l) 的數目是多少?
H+(aq): 3 H2O(l): 6
H+(aq): 6 H2O(l): 3
H+(aq): 6 H2O(l): 12
H+(aq): 12 H+(aq):6
Similar Resources on Wayground
10 questions
Chemical Equilibrium XI IPA 3
Quiz
•
KG - 11th Grade
12 questions
Acidic, Basic, Alkaline and Amphoteric Substances
Quiz
•
8th - 12th Grade
8 questions
Predicting Products
Quiz
•
9th Grade - University
10 questions
pH & Indicators
Quiz
•
9th - 12th Grade
11 questions
Chemistry Acid and Base
Quiz
•
10th - 11th Grade
10 questions
Elektrolisis
Quiz
•
1st - 12th Grade
10 questions
trắc nghiệm hóa 10
Quiz
•
10th Grade
10 questions
Testing for Ions Prelab
Quiz
•
10th Grade
Popular Resources on Wayground
5 questions
This is not a...winter edition (Drawing game)
Quiz
•
1st - 5th Grade
25 questions
Multiplication Facts
Quiz
•
5th Grade
10 questions
Identify Iconic Christmas Movie Scenes
Interactive video
•
6th - 10th Grade
20 questions
Christmas Trivia
Quiz
•
6th - 8th Grade
18 questions
Kids Christmas Trivia
Quiz
•
KG - 5th Grade
11 questions
How well do you know your Christmas Characters?
Lesson
•
3rd Grade
14 questions
Christmas Trivia
Quiz
•
5th Grade
20 questions
How the Grinch Stole Christmas
Quiz
•
5th Grade
