penyetaraan reaksi redoks

Quiz
•
Chemistry
•
3rd Grade
•
Medium
rahmi witri
Used 94+ times
FREE Resource
20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Reaksi reduksi dapat ditunjukkan oleh terjadinya....
penambahan proton
pelepasan elektron
penambahan muatan atom
penangkapan oksigen
pengurangan bilangan oksidasi
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Bilangan oksidasi nitrogen dalam HNO3 adalah....
–5
-3
0
+3
+5
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Dalam senyawa manakah mangan memiliki bilangan oksidasi tertinggi?
MnO2
K2MnO4
MnO
KMnO4
Mn2O3
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Reaksi oksidasi yang benar adalah . . . .
Mg(s) + 2 e– --> Mg2+(aq)
Na(s) --> Na2+(aq) + 2 e–
Cu(s) + 2 e– --> Cu2+(aq)
Al(s) --> Al3+(aq) + 3 e–
Ca(s) --> Ca3+(aq) + 3 e–
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Setengah reaksi reduksi NO3– menjadi N2O adalah sebagai berikut.
a NO3–(aq) + b H+ + 8 e– ⎯⎯→ c N2O(g) + d H2O(l)
Nilai a dan b yang cocok adalah ….
2, 5
2, 10
, 1, 4
1, 5
3, 5
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Perhatikan persamaan reaksi reduksi berikut.
p IO3–(aq) + q H+ + r e– → s I2(s) + t H2O(l)
Nilai p, q, r, s, t di atas berturut-turut adalah ….
1, 6, 5, 1, 3
1, 12, 10, 1, 6
2, 12, 10, 1, 12
2, 12, 10, 1, 6
1, 5, 6, 1, 3
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Jika reaksi:
Cu2+(aq) + NO(g) → Cu(s) + NO3–(aq) (belum setara) dilengkapi maka persamaan reaksi itu akan mengandung ....
10 H+ dan 5 H2O
8 OH– dan 4 H2O
8 H+ dan 4 H2O
4 OH– dan 2 H2O
4 H+ dan 2 H2O
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