REAKSI REDOKS
Quiz
•
Chemistry
•
12th Grade
•
Practice Problem
•
Hard
Leni Mulyani
Used 8+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Bilangan oksidasi Cr pada senyawa Na2Cr2O4 adalah ...
+1
+2
+3
+6
-6
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Bilangan oksidasi Mn tertinggi terdapat pada senyawa
K2MnO4
KMnO4
MnO
Mn2O3
MnO2
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Setengah reaksi reduksi NO3- menjadi N2O adalah sebagai berikut:
a NO3- + b H+ + 8e → c N2O + d H2O
Nilai a,b,c dan d yang benar berturut-turut adalah .…
1, 4, 1, 2
2, 4, 1, 2
2, 8, 1, 5
2, 10, 1, 5
5, 10, 2, 4
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Urutan bilangan oksidasi klorin (Cl) dari yang terendah adalah ...
Cl2
NaClO
HCl
HClO4
KClO3
5.
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
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Manakan reaksi yang sudah setara
SO42- + 2I- + 2H+ --> H2S + I2
Al + Cu2+ --> Al3+ + Cu
Cu + NO3- + 4 H+ --> Cu2+ + NO + 2 H2O
5I- + IO3- + 6H+ --> 3I2 + 3 H2O
Cl2 + 6 OH- --> Cl- + ClO3- + 3 H2O
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Diantara reaksi – reaksi berikut yang merupakan reaksi reduksi adalah ,,,,
2Cl – → Cl
Fe 2+ → Fe 3+
Zn → Zn 2+
CaO + O2 → CaCO3
Cu 2+ → Cu
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