Redoks dan elektrokimia xii

Quiz
•
Other
•
12th Grade
•
Hard
angel gunawan
Used 4+ times
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15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 6 pts
Nilai bilangan okidasi dari Cr didalam K2CrO4 adalah . . .
4
5
6
7
8
2.
MULTIPLE CHOICE QUESTION
1 min • 6 pts
Nilai bilangan okidasi dari S didalam Na2SO3 adalah . . .
4
5
6
7
8
Answer explanation
3.
MULTIPLE CHOICE QUESTION
1 min • 6 pts
Nilai bilangan oksidasi dari Cl2 didalam Ca(ClO2)2 adalah . . .
16
6
1
12
4
4.
MULTIPLE CHOICE QUESTION
1 min • 6 pts
Reaksi Redoks :
Yang berperan sebagai oksidator pada reaksi di atas adalah . . .
NaI
H2SO4
Mn2+
I–
MnO2
5.
MULTIPLE CHOICE QUESTION
1 min • 7 pts
Diketahui reaksi :
Jika reaksi diatas disetarakan makan koefisien a, b, dan c berturut-turut adalah . . .
4, 1, 1
4, 1, 2
4, 1, 3
4, 1, 4
4, 1, 5
6.
MULTIPLE CHOICE QUESTION
1 min • 7 pts
Diantara reaksi-reaksi dibawah ini yang merupakan 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)
7.
MULTIPLE CHOICE QUESTION
1 min • 7 pts
Diketahui reaksi :
Jika reaksi tersebut disetarakan maka nilai koefisien a, b dan c adalah . . .
8, 1, 2
8, 2, 1
16, 1, 8
16, 2, 2
8, 1, 1
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