
Quiz Elektrokimia
Quiz
•
Chemistry
•
12th Grade
•
Hard
Lukman Lukman
Used 1+ times
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35 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Belerang mempunyai bilangan oksidasi paling tinggi terdapat pada senyawa ....
HSO3¯
H2S
SO2
H2SO4
H2SO3
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Perhatikan persamaan reaksi redoks berikut. a MnO4¯ + 16 H+ + 5 C2O42¯ → b Mn2+ + 8 H2O + 10 CO2. a dan b berturut-turut adalah ....
2 dan 3
2 dan 2
2 dan 5
3 dan 5
2, 4, dan 5
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Perhatikan reaksi berikut (belum setara). Cr(OH)4¯ + MnO4¯ → MnO2 + CrO4¯ Jumlah mol Cr(OH)4¯yang dapat dioksidasi oleh 1 mol MnO4¯ adalah ....
3 mol
2 mol
1 mol
½ mol
1/3 mol
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
H2S dapat dioksidasi oleh KMnO4 menghasilkan K2SO4 dan MnO2. Dalam reaksi ini setiap mol H2S melepaskan ....
2 mol electron
4 mol elektron
5 mol elektron
7 mol elektron
8 mol electron
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
H2SO4 + HI → H2S + I2 + H2O. Satu mol asam sulfat dapat menghasikan hidrogen iodida sebanyak ….
1 mol
2 mol
4 mol
6 mol
8 mol
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jika diketahui harga E° untuk Zn dan Cu yaitu: Zn2+ + 2 e¯ → Zn E° = -0,76 volt; Cu2+ + 2 e¯ → Cu E° = +0,34 volt. Potensial sel Volta dengan elektrode Zn dan Cu yang berjalan spontan adalah ….
0,34 volt
1,10 volt
2,20 volt
0,42 volt
3,14 volt
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Aki mobil mempunyai elektrode Pb dan PbO2. Jika dalam aki itu digunakan elektrode-elektrode Pb dan PbO2 akan mengalami perubahan yaitu ….
Pb berubah menjadi PbO2 dan PbO2 tidak mengalami perubahan
Pb berubah menjai PbSO4 dan PbO2 tidak mengalami perubahan
Kedua elektrode tidak mengalami perubahan
Pb larut, sedangkan PbO2 berubah menjadi PbSO4
Pb dan PbO2 berubah menjadi PbSO4
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