
Quiz redoks
Authored by Husnaeni Wahed
Science
KG
Used 5+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Diantara reaksi-reaksi di bawah ini, yang bukan merupakan reaksi redoks adalah….
SnCl2 + I2 + 2HCl → SnCl4 + 2HI
H2 + Cl2 → 2HCl
Cu2O + C → 2Cu + CO
Cu2O + 2HCl → CuCl2 + H2O
MnO2 + 4HCl → MnCl2 + 2H2O + Cl2
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Oksidasi 1 mol Cr3+ menjadi CrO42- melepaskan elektron sebanyak ....
1 mol
2 mol
3 mol
4 mol
5 mol
3.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Diberikan persamaan reaksi (belum setara) :
IO3- (aq) + I- (aq) + H+ (aq) → I2 (aq) + H2O (l)
Perbandingan mol I- terhadap I2 pada reaksi setara adalah …
2 : 1
1 : 5
6 : 5
3 : 3
5 : 3
4.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
aMnO4- + bSO32- → cMn2+ + dSO42- , setelah disetarakan harga a, b, c, dan d berturut-turut ....
2, 5, 6, 2
2, 5, 2, 3
2, 5, 2, 5
3, 5, 3, 5
5, 3, 3, 5
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Pada reaksi Fe2+ + MnO4- → Fe3+ + Mn2+, pernyataan yang benar adalah ....
Fe2+ merupakan oksidator
Mn merupakan reduktor
bilangan oksidasi Mn dari +7 menjadi +2
bilangan oksidasi Mn dari +2 menjadi +7
setengah reaksi oksidasinya MnO4- → Mn2+
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Jumlah H+ dan elektron terlibat yang tepat untuk setengah reaksi oksidasi Cr3+ menjadi CrO42- pada suasana asam adalah ....
4H+ dan 3e-
8H+ dan 3e-
4H+ dan 6e-
8H+ dan 6e-
8H+ dan 7e-
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Dalam suasana basa, Cl2 mengalami reaksi disproporsionasi menghasilkan ion Cl-dan ClO3- . Perbandingan koefisien ClO3- terhadap Cl2 yang dihasilkan setelah
reaksi setara adalah ….
1/5
1/3
1/2
1/1
2/1
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