Reaksi Reduksi dan Oksidasi

Quiz
•
Chemistry
•
10th Grade
•
Medium
Rimanda Sari
Used 126+ times
FREE Resource
20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Perhatikan persamaan reaksi berikut!
(1) PbO2 → Pb2+
(2) C2O42- → 2 CO2
(3) MnO4- → MnO2
(4) Cl2 → 2 ClO3-
Reaksi yang merupakan reaksi reduksi adalah… .
(1) dan (2)
(1) dan (3)
(2) dan (3)
(2) dan (4)
(3) dan (4)
2.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Bilangan Oksidasi unsur belerang dalam senyawa Na2S2O3 adalah… .
+5
+4
+3
+2
+1
3.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Bilangan oksidasi unsur Cr dalam senyawa CrO42- adalah… .
+6
+5
+4
+3
+2
4.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Pada masing-masing perubahan berikut, yang merupakan contoh reaksi oksidasi adalah….
Cu2+ menjadi Cu
F2 menjadi F-
Cl- menjadi Cl2
Cr2O72- menjadi CrO42-
H2O menjadi H+
5.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Reaksi berikut ini yang merupakan reaksi redoks adalah… .
NaOH + HCl → NaCl + H2O
CaSO4 + 2 LiOH → Ca(OH)2 + Li2SO4
Mg(OH)2 + 2 HCl → MgCl2 + 2 H2O
BaCl2 + H2SO4 → BaSO4 + 2 HCl
MnO2 + HCl → MnCl2 + 2 H2O + Cl2
6.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Unsur yang memiliki bilangan oksidasi sama dengan unsur Cl di dalam HClO3 adalah… .
Cr dalam ion CrO42-
Fe dalam ion Fe2(SO4)3
Cr dalam ion Cr2O72-
Sb dalam ion SbO43-
Mn dalam ion MnO4-
7.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Perhatikan persamaan reaksi : 3 H2S + 2 HNO3 + 6 H+ → 2 NO + 2 S + 4 H2O
Spesi yang merupakan oksidator adalah… .
H2O
HNO3
NO
S
H2S
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