
Bilangan Oksidasi dan Konsep Redoks
Authored by Lempuyang Senja
Chemistry
10th Grade
Used 7+ times

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14 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 10 pts
Apakah yang dimaksud bilangan oksidasi?
Apakah yang dimaksud bilangan oksidasi?
Jumlah proton dalam inti atom suatu unsur.Jumlah proton dalam inti atom suatu unsur
Jumlah elektron yang terlibat dalam pembentukan ikatan kimia
Perbedaan jumlah elektron yang dimiliki atom dalam keadaan bebas dengan jumlah elektron saat atom tersebut berada dalam senyawa
Ukuran muatan formal suatu atom dalam molekul atau ion
2.
MULTIPLE CHOICE QUESTION
3 mins • 10 pts
Bilangan oksidasi I di dalam ion IO4– adalah ….
+7
+6
-8
+5
3.
MULTIPLE CHOICE QUESTION
5 mins • 10 pts
Pada reaksi redoks:
MnO2 + 4HCl → MnCl + 2H2O + 2Cl2
Bilangan oksidasi Mn mengalami perubahan dari ….
+4 menjadi +1
+4 menjadi +2
+2 menjadi +4
4.
MULTIPLE CHOICE QUESTION
3 mins • 10 pts
Nilai bilangan okidasi dari Cr didalam K2CrO4 adalah . . .
+4
+5
+6
5.
MULTIPLE CHOICE QUESTION
3 mins • 10 pts
Nilai bilangan okidasi dari S didalam Na2SO3 adalah . . .
-4
+4
+5
+6
6.
MULTIPLE CHOICE QUESTION
5 mins • 10 pts
Yang berperan sebagai oksidator pada reaksi tersebut adalah . . .
H2SO4
NaI
MnO2
7.
MULTIPLE CHOICE QUESTION
10 mins • 10 pts
Diantara reaksi-reaksi dibawah ini yang merupakan reaksi redoks adalah . . .
2KI (aq) + Cl2 (aq) → I2 (s) + 2KCI (aq)
AgNO3 (aq) + NaCl (aq) → AgCl (s) + NaNO3 (Aq)
NH3 (aq) + H2O (l) → NH4+ (aq) + OH– (aq)
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