Di antara reaksi-reaksi tersebut di bawah ini yang merupakan contoh reaksi redoks adalah ….
Redoks
Quiz
•
Chemistry
•
1st - 3rd Grade
•
Hard
anik sari
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20 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Di antara reaksi-reaksi tersebut di bawah ini yang merupakan contoh reaksi redoks adalah ….
AgNO3(aq) + NaCl(aq) --> AgCl(s) + NaNO3(aq)
2KI(aq) + Cl2(aq) --> I2(s) + 2KCI(aq)
NH3(aq) + H2O(l) --> NH4+(aq) + OH-(aq)
NaOH(aq) + CH3COOH(aq) --> CH3COONa(aq) + H2O(l)
Al2O3(S) + 2NaOH(aq) --> 2NaAlO2(aq) + H2O(l)
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Reaksi berikut :
3Br2 (g) + a OH- (aq) --> b BrO3- + c Br- (aq) + d H2O (l)
Harga koefisien a, b, c, d supaya reaksi di atas setara adalah ….
2, 2, 5 dan 1
6, 1, 5 dan 3
6, 5, 1 dan 3
5, 6, 3 dan 1
4, 1, 5 dan 2
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Bilangan oksidasi dari unsur Mn pada senyawa KMnO4 adalah ...
+7
+6
+3
+2
+1
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Bilangan oksidasi Mn tertinggi terdapat pada ....
KMnO4
MnO2
K2MnO4
MnCI2
MnS
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Perhatikan persamaan reaksi redoks berikut:
2HBr + H2SO4 --> Br2 + SO2 + 2H2O
Zat yang merupakan reduktor adalah….
HBr
H2SO4
Br2
SO2
H2O
6.
MULTIPLE CHOICE QUESTION
2 mins • 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)
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Manakah yang bukan reaksi redoks ?
2Ag + Cl2 → 2AgCl
SnCl2 + I2 + 2 HC l→ SnCl4 + HI
CuO + CO→ Cu2O + CO2
CuO + HCl →CuCl2 + H2O
H2 + Cl2→ 2HCl
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