Penyetaraan reaksi redoks
Quiz
•
Chemistry
•
12th Grade
•
Easy
Rosita Rosita
Used 28+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Jika reaksi:
Cu2+(aq) + NO(g) → Cu(s) + NO3–(aq) (belum setara) dilengkapi maka persamaan reaksi itu akan mengandung ....
10 H+ dan 5 H2O
8 OH– dan 4 H2O
8 H+ dan 4 H2O
4 OH– dan 2 H2O
4 H+ dan 2 H2O
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
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
5 mins • 1 pt
Pada reaksi berikut.
a KMnO4 + b HCl ⎯⎯→ c Cl2 + d MnCl2 + e KCl + f H2O
Nilai a dan c yang sesuai adalah ….
2, 5
2, 8
5, 8
5, 16
8, 16
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Reaksi ion permanganat dan ion oksalat dalam larutan basa memiliki persamaan berikut.
MnO4– (aq) + C2O42–(aq) ⎯⎯→ MnO2(s) + CO32–(aq)
Jika persamaan ini disetarakan, jumlah ion OH– yang dibentuk adalah ….
nol
dua di kanan
dua di kiri
empat di kanan
empat di kiri
5.
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
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Reaksi Redoks :
2KMnO4(aq) + 5H2C2O4(aq) + 3H2SO4(aq)→2MnSO4(aq) + 10CO2(g) + K2SO4(aq) + 8H2O(l)
Setengah reaksi oksidasi dari reaksi tersebut adalah . . . .
MnO4–(aq) + OH+(aq) + 5e → Mn2+(aq) + 4H2)(l)
MnO4–(aq) + 2H2O(aq) + 3e → MnO2 (s) + 4OH–(aq)
H2C2O4(aq) → 2CO2(g) + 2H+(aq) + 2e
CO2(g) + 2H+(aq) + 2e → H2C2O4(g)
2H2SO4(aq) → 2H2O(l) + 2SO2(g) + O2(g)
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
a H2O(l) + b Cl-(aq) + 2MnO4-(aq) → c Cl2(g) + 2MnO2(s) + d OH-(aq)
Setelah persamaan reaksi disetarakan maka harga a, b, c dan d adalah . . . .
3, 4, 6, 8
4, 6, 3, 8
6, 4, 3, 4
6, 8, 3, 4
8, 6, 4, 3
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