Reaksi Redoks Kelas XII

Quiz
•
Chemistry
•
12th Grade
•
Medium
Wiji Purwanti
Used 208+ times
FREE Resource
20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Suatu reaksi redoks :
aBr2 (aq) + bOH– (aq) → cBrO3– (aq) + dBr–(aq) + eH2O (l)
Harga a, b, c dan a berturut-turut agar reaksi redoks di atas setara adalah ….
3, 6, 1, 5, 3
6, 1, 5, 3, 3
1, 5, 3, 6, 3
6, 1, 3, 5, 4
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Perhatikan reaksi redoks berikut:
Cr2O72- (aq) + SO32- (aq) → Cr3+ (aq) + SO42- (aq)
Setelah reaksi redoks disetarakan, perbandingan, banyak mol ion Cr2O72- dengan SO42- dalam reaksi redoks tersebut adalah ….
1 : 3
3 : 1
2 : 3
3 : 2
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Reaksi berikut yang merupakan redoks adalah ….
AgNO3 + NaCl → AgCl + NaNO3
MgO + H2O → Cu2 + H2O
Cl2 + SO2 + H2O → HCl + H2SO4
CuO + 2H → Cu2 + H2O
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cangkang kerang merupakan sumber bahan pembentuk gunung kapur, yaitu senyawa kalsium karbonat. Biloks karbon dalam senyaa tersebut adalah ....
+1
+2
+4
+5
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Bilangan oksidasi oksigen tertinggi terdapat dalam
CaO
BaO2
O2F2
OF2
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Elektrolit dalam batu baterai mengandung ion NH4+. Biloks N dalam ion tersebut adalah
-1
+1
-3
+3
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tentukan bilangan oksidasi atom S pada ion SO4-2...
+1
+2
+4
+6
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