
Ulangan Harian kelas XII

Quiz
•
Chemistry
•
12th Grade
•
Hard
Amelia Putri
Used 3+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Diketahui reaksi :
2CO(g) + 2NO(g) --> 2CO2(g) + N2(g)
Bilangan oksidasi C berubah dari
+2 menjadi +4
0 menjadi -2
+2 menjadi 0
+4 menjadi +2
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Bilangan oksidasi S dalam senyawa S2O72–adalah ….
-6
-4
+4
+6
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Perhatikan senyawa berikut !
1. HCl
2. NaClO
3. KClO2
4. KClO3
5. NaCl
Manakah bilangan oksidasi unsur klor tertinggi ...
1
2
3
4
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Diberikan persamaan reaksi redoks sebagai berikut!
2 HBr + H2SO4 → Br2 + SO2 + 2 H2O
Manakah yang unsur yang mengalami reduksi ...
Br
S
H2
O
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Diberikan persamaan reaksi redoks sebagai berikut!
2 HBr + H2SO4 → Br2 + SO2 + 2 H2O
Manakah yang unsur yang mengalami oksidasi ...
Br
S
H2
O
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Perhatikan pernyataan berikut :
1. reaksi pelepasan hidrogen
2. reaksi penurunan bilangan oksidasi
3. reaksi pembebasan elektron
4. reaksi pengikatan elektron
Dari pernyataan diatas yang merupakan konsep dari reaksi reduksi adalah ….
1, 2 dan 3
1 dan 3
1 dan 2
3 dan 4
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Oksidator adalah senyawa yang mengalami reduksi
Reduktor adalah senyawa yang mengalami oksidasi.
Pada reaksi redoks berikut !
MnO2 + 2H2SO4 + 2NaI → MnSO4 + Na2SO4 + 2H2O + I2
Manakah yang berperan sebagai oksidator ...
NaI
MnO2
H2SO4
I−
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