
reaksi redok
Authored by Siti Jainab
Chemistry
10th Grade
Used 21+ times

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9 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Berikut ini, pernyataan yang benar tentang reaksi oksidasi adalah...
Penerimaan pasangan elektron
Reaksi pelepasan oksigen dari senyawanya
Penerimaan elektron
Penurunan bilangan oksidasi
Pertambahan bilangan oksidasi
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Diantara reaksi berikut yang bukan reaksi redoks adalah...
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Bilangan oksidasi pada senyawa adalah...
+3
+4
+5
+6
+7
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Reaksi di bawah ini yang merupakan reaksi redoks adalah….
AgNO3 + NaCl → AgCl + NaNO3
2 KI + Cl2 → I2 + 2 KCl
NH3 + H2O → NH4+ + OH−
NaOH + CH3COOH → CH3COONa + H2O
Al2O3 + 2 NaOH → 2 NaAlO2 + H2O
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Unsur Mn yang mempunyai bilangan oksidasi sama dengan bilangan oksidasi S dalam Na2SO4 adalah ….
MnO
MnO2
Mn(NO3)2
KMnO4
K2MnO4
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Berikut ini diberikan lima persamaan reaksi oksidasi atau reduksi yang belum setara.
(1) MnO4- → Mn2+
(2) C2O42- → CO2
(3) Mg2+ + 2e- → Mg
(4) C2H4 → C2H6
(5) FeO → Fe2O3
Kelompok persamaan reaksi yang merupakan proses reduksi ditunjukkan oleh ....
(1), (2), dan (3)
(1), (3), dan (4)
(2), (3), dan (4)
(2), (3), dan (5)
(2), (4), dan (5)
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Persamaan reaksi autoredoks dari logam tembaga (I) oksida dengan larutan asam klorida sebagai berikut:
Cu2O + 2 HCl → Cu + CuCl2 + H2O
Zat yang mengalami reaksi autoredoks beserta perubahan bilangan oksidasinya adalah ....
Cu, perubahan +1 menjadi 0 dan +2
Cu, perubahan +1 menjadi +1 dan +2
Cu, perubahan –2 menjadi 0 dan +2
Cl, perubahan –2 menjadi 0 dan +2
Cl, perubahan +2 menjadi +1 dan +2
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