Kuiz Redoks (1)
Authored by walhanna moe
Chemistry
5th Grade
Used 61+ times
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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Bahan yang kehilangan oksigen akan mengalami tindak balas
pengoksidaan
penurunan
pembakaran
penghidrogenan
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A
B
C
D
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Manakah antara berikut bukan cara untuk mencegah pengaratan?
Perlindungan logam korban
Menggunakan lapisan pelindung
Peneutralan
Pengaloian
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Persamaan ion berikut menunjukkan tindak balas antara zink dengan asid.
Zn + 2H+ --> Zn2+ + H2
Apakah perubahan nombor pengoksidaan hidrogen?
0 kepada +1
0 kepada +2
+1 kepada 0
+1 kepada +2
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A
B
C
D
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
A
B
C
D
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Rajah menunjukkan setitis air di atas sebatang besi. Persamaan manakah yang berlaku di katod?
Fe ----> Fe2+ + 2e-
Fe2+ + 2e- -----> Fe
O2 + H2O + 4e- ----> 4OH-
4OH- -----> O2 + H2O + 4e-
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