Redoks
Quiz
•
Chemistry
•
5th Grade
•
Practice Problem
•
Hard
CHUINH Moe
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20 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Antara berikut, yang manakah memberikan tiga definisi pengoksidaan dengan betul?
A
B
C
D
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Di antara tindak balas berikut, yang manakah nombor pengoksidaan nitrogen menunjukkan peningkatan yang paling besar?
NH3 (g) + HCl (g) → NH4Cl (s)
2NH3 (g) + 3CuO (s) → N2 (g) + 3Cu (s) + 3H2O (l)
2NO (g) + O2 (g) → 2NO2 (g)
4NO2 (g) + O2 (g) + 2H2O (l) → 4HNO3 (aq)
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Apakah pemerhatian apabila ion Fe2+ bertukar kepada ion Fe3+?
Perang kepada tak berwarna
Jingga kepada hijau
Ungu kepada tak berwarna
Hijau kepada perang
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Antara sebatian sulfur berikut yang manakah mempunyai nombor pengoksidaan bagi sulfur yang paling tinggi?
S2O8 2-
S2O32-
SO3 2-
SF6
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Rajah menunjukkan radas yang disediakan untuk mengkaji tindak balas antara air klorin dan larutan kalium bromida.Antara berikut, bahan manakah yang boleh menggantikan air klorin untuk mendapat pemerhatian yang sama?
Larutan kalium kromat(VI) berasid
Larutan kalium iodida
Larutan ferum(II) sulfat
Serbuk zink
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Antara berikut, yang manakah berlaku semasa proses pengoksidaan?
Kehilangan oksigen
Menerima hidrogen
Menderma elektron
Pengurangan nombor pengoksidaan
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Apakah nombor pengoksidaan sulfur dalam sulfur trioksida?
-6
-2
+2
+6
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