
KIMIA XII
Quiz
•
Chemistry
•
2nd - 3rd Grade
•
Practice Problem
•
Medium
Yuniarti Nursanti
Used 1+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Suatu unsur/anion dapat mengalami reduksi jika....
Dapat menerima elektron
dapat melepas elektron
Dapat melepas H+
Dapat menerima H+
Dapat melepas oksigen
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Bilangan oksidasi dari Fe, H2, O2, P4 dan Sb adalah....
- 2
- 1
0
+ 2
+ 3
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pada reaksi redoks :
H2O2(aq) + Cr(OH)4− → CrO32−
Oksigen dalam setengah reaksi : H2O2 → CrO42−mengalami perubahan bilangan oksidasi dari....
0 → -2
+2 → -2
+1 → -2
-1 → -2
-2 → -2
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Fungsi jembatan garam dalam sel volta adalah...
Menambah muatan positif
Mengurangi muatan negatif
Menjaga keseimbangan kation dan anion
a. Menstabilkan reaksi tetap berlangsung
memperlancar masuknya elektron
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Aluminium dapat juga berkarat, rumus kimia karat Aluminium adalah....
AlO
AlO2
AlO3
Al2O3.xH2O
Al3O2.xH2O
6.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Dari data reaksi setengah sel dengan Eo sbb:
Pb2+ + 2e à Pb Eo = - 0,13
Cu2+ + 2e à Cu Eo = + 0,34
Sn2+ + 2e à Sn Eo = - 0,14
Mg2+ + 2e à Mg Eo = - 2,38
Fe2+ + 2e à Fe Eo = - 0,43
Ni2+ + 2e à Ni Eo = - 0,23
Logam yang dapat mencegah korosi pada pipa yang terbuat dari besi adalah....
Mg
Cu
Sn
Pb
Ni
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Aluminium dapat juga berkarat, rumus kimia karat Aluminium adalah....
AlO
AlO3
AlO2
Al2O3.xH2O
Al3O2.xH2O
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