
UH. Reaksi Redoks dan Sel Elektrokimia
Authored by Siti Fatimah
Chemistry
3rd Grade
20 Questions
Used 4+ times

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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Pada reaksi 2CO + 2NO → 2CO2 + N2 bilangan oksidasi N berubah dari ….
+2 ke 0
+2 ke +1
+3 ke +1
+3 ke +2
+4 ke 0
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Bilangan oksidasi Cl dalam senyawa KClO2 adalah ….
+7
-1
+3
+1
+5
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Pada reaksi redoks: MnO2 + 2H2SO4 + 2NaI → MnSO4 + NaSO4 + 2H2O + I2 Yang berperan sebagai oksidator adalah ….
NaI
H2SO4
Mn+4
I-
MnO2
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Unsur logam yang mempunyai bilangan oksidasi +5 terdapat pada ion ….
CrO4-
Fe(CN)63-
MnO4-
Cr2O72-
SbO43-
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Bilangan oksidasi kromium yang sama pada pasangan senyawa berikut adalah ….
K2Cr2O7 dan Cr2O3
K2Cr2O7 dan Cr(OH)4
K2CrO4 dan Cr2O3
K2CrO4 dan Cr(OH)4
Cr(OH)4- dan Cr2O3
6.
MULTIPLE CHOICE QUESTION
5 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
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Pada reaksi (belum setara): H2SO4 + HI → H2S + I2 + H2O 1 mol asam sulfat dapat mengoksidasi hidrogen iodida sebanyak ….
1 mol
2 mol
4 mol
6 mol
8 mol
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