ASAS KIMIA KELAS XII 2024
Quiz
•
Chemistry
•
12th Grade
•
Practice Problem
•
Easy
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35 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Diantara reaksi-reaksi dibawah ini yang merupakan reaksi redoks adalah . . .
a. AgNO3 (aq) + NaCl (aq) → AgCl (s) + NaNO3 (Aq)
a. 2KI (aq) + Cl2 (aq) → I2 (s) + 2KCI (aq)
a. NH3 (aq) + H2O (l) → NH4+ (aq) + OH– (aq)
a. NaOH (aq) + CH3COOH (aq) → CH3COONa (aq) + H2O (l)
a. Al2O3 (s) + 2NaOH (aq) → 2NaAlO2 (aq) + H2O (l)
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Nilai bilangan okidasi dari Cr didalam K2CrO4 adalah . . .
4
5
6
7
8
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Nilai bilangan okidasi dari S didalam Na2SO3 adalah . . .
4
5
6
7
8
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Reaksi Redoks :
MnO2 + 2H2SO4 + 2NaI → MnSO4 + Na2SO4 + 2H2O + I2
Yang berperan sebagai oksidator pada reaksi di atas adalah . . .
NaI
H2SO4
Mn2+
I-
MnO2
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Diketahui reaksi :
aI- + SO4-2 → bH2S + cI2 (suasana asam)
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
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Diketahui reaksi :
aCl2 + bIO3- → cCl- + IO4-
Jika reaksi tersebut disetarakan maka nilai koefisien a, b dan c adalah . . .
1, 1, 2
1, 2, 1
1, 1, 1
1, 2, 2
2, 1, 1
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Reaksi Redoks berikut :
aMnO + bPbO2 + cH+ → dMnO4- + ePb2+ + fH2O
mempunyai harga koefisien reaksi untuk a, b, dan c berturut-turut adalah . . . .
2, 5, 8
2, 6, 8
a. 2, 2, 7
2, 6, 7
2, 3, 8
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