
Sumatif 2 - Reaksi Reduksi dan Oksidasi

Quiz
•
Chemistry
•
10th Grade
•
Hard
Dwi Hariyanti
Used 14+ times
FREE Resource
20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
2 mins • 5 pts
Pada reaksi: Zn + H2SO4 → ZnSO4 + H2
Zn mengalami oksidasi karena ....
mengikat elektron
mengalami penurunan bilangan oksidasi
melepas oksigen
mengikat oksigen
larut dalam H2SO4
2.
MULTIPLE CHOICE QUESTION
2 mins • 5 pts
Contoh reaksi reduksi ditinjau dari pelepasan oksigen adalah ....
4Fe + 3O2 → 2Fe2O3
2Mg + O2 → 2MgO
4KClO3 → 2KCl + 3O2
4FeS2 + 11O2 → 2Fe2O3 + 8SO2
CH4 + 2O2 → CO2 + 2H2O
3.
MULTIPLE CHOICE QUESTION
2 mins • 5 pts
Contoh reaksi oksidasi jika ditinjau dari pelepasan-pengikatan elektron adalah ....
Na+ + e- → Na
Cu2+ + 2e- → Cu
Cr3+ + 3e- → Cr
Cl2 + 2e- → 2Cl-
Mn → Mn2+ + 2e-
4.
MULTIPLE CHOICE QUESTION
2 mins • 5 pts
Pada reaksi: PCl3 + Cl2 → PCl5
Zat yang menangkap elektron adalah ....
PCl3
Cl2
PCl5
PCl3 dan PCl5
PCl3 dan Cl2
5.
MULTIPLE CHOICE QUESTION
2 mins • 5 pts
Diantara reaksi-reaksi berikut, reaksi yang tidak mengalami reaksi oksidasi atau reaksi reduksi adalah ....
NH3 → NO2
CO32- → CO
N2O4 → NO2
SO2 → H2SO4
S2O32- → S2O42-
6.
MULTIPLE CHOICE QUESTION
2 mins • 5 pts
Diketahui beberapa proses kimia yang terjadi dalam kehidupan sehari-hari:
1. Lilin yang menyala
2. Perkaratan besi
3. Fotosintesis tumbuhan
4. Apel yang berubah warna setelah dikupas
5. Minyak yang menjadi tengik
Proses oksidasi terjadi pada nomor ....
1 dan 2
1, 2, dan 3
2, 3, dan 4
1, 2, 3 dan 5
1, 2, 4, dan 5
7.
MULTIPLE CHOICE QUESTION
2 mins • 5 pts
Zat SO2 bertindak sebagai oksidator pada reaksi ....
SO2 + H2O → H2SO3
2SO2 + O2 → 2SO3
SO2 + PbO → PbSO3
SO2 + 2H2S → 2H2O + 3S
SO2 + Ba(OH)2 → BaSO3 + H2O
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