UH Redoks XII
Quiz
•
Chemistry
•
9th - 12th Grade
•
Medium
Abdul Ghofir
Used 7+ times
FREE Resource
15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Reaksi total yang terjadi dalam aki adalah sebagai berikut :
Pb(s) + PbO2(s) + 2 H2SO4(aq) → PbSO4(s) + H2O(l)
Reduktor dalam reaksi tersebut adalah . . . .
Pb karena dapat mereduksi PbO2
PbO2 karena dapat mereduksi Pb
H2SO4 karena dapat mereduksi PbO2
Pb karena mengalami reaksi reduksi
PbO2 karena mengalami reaksi reduksi
2.
MULTIPLE CHOICE QUESTION
2 mins • 5 pts
Setengah reaksi reduksi NO3– menjadi N2O adalah sebagai berikut.
a NO3– (aq) + b H+ + 8 e– ⎯⎯→ c N2O(g) + d H2O(l)
Nilai a dan b yang cocok adalah ….
2, 5
2, 10
1, 4
1, 5
3, 5
3.
MULTIPLE CHOICE QUESTION
2 mins • 5 pts
Dalam senyawa manakah mangan memiliki bilangan oksidasi tertinggi?
MnO2
K2MnO4
MnO
KMnO4
Mn2O3
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Perhatikan pernyataan berikut
(1) reaksi pelepasan hidrogen
(2) reaksi penurunan bilangan oksidasi
(3) reaksi pembebasan elektron
(4) reaksi pengikatan elektron
Dari pernyataan di atas yang merupakan konsep dari reaksi reduksi adalah ....
(1), (2), (3)
(1), (3)
(1), (2)
(2), (4)
(3) (4)
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Reaksi berikut yang merupakan reaksi redoks adalah ….
HCl + NaOH→ NaCl + H2O
Ca(OH)2 +H2SO4 → CaSO4 + 2H2O
2Al + 6HCl → 2AlCl3 + 3H2
MgCl2 + Na2SO4 → 2NaCl +MgSO4
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Perhatikan persamaan reaksi reduksi berikut.
p IO3–(aq) + q H+ + r e– → s I2(s) + t H2O(l)
Nilai p, q, r, s, t di atas berturut-turut adalah ….
1, 6, 5, 1, 3
1, 12, 10, 1, 6
2, 12, 10, 1, 12
2, 12, 10, 1, 6
1, 5, 6, 1, 3
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Persamaan reaksi redoks:
a Fe2+ + b MnO4- + c H+ → Fe3+ + Mn2+ + d H2O
Harga koefisien a, b, c, dan d berturut-turut adalah ....
5, 1, 4, dan 2
5, 1, 8, dan 4
5, 1, 4, dan 8
5, 1, 2, dan 4
4, 8, 1, dan 5
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