
REDOKS DAN ELEKTROKIMIA
Authored by ina darmawaty
Chemistry
12th Grade
Used 1+ times

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20 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Reaksi berikut yang termasuk reaksi reduksi menurut konsep pelepasan dan pengikatan oksigen adalah ….
4Fe(s) + 3O2(g) → 2Fe2O3(s)
2Mg(s) + O2(g) → 2MgO(s)
4KClO3(aq) → 2KCl(aq) + 3O2(g)
4FeS2(s) + 11O2(g) → 2Fe2O3(s) + 8SO2(g)
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Reaksi berikut yang termasuk reaksi reduksi menurut konsep serah terima
elektron adalah....
Na(s) + HCl(aq) → NaCl(aq)+ H2(g)
H2(g) → 2H+(aq) + 2e-
Cu2+(aq) + 2e- → Cu(s)
Fe2+(aq) → Fe3+(aq) + e-
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Reaksi berikut yang termasuk reaksi oksidasi menurut konsep pelepasan dan pengikatan oksigen adalah ….
2Fe(s) + 3O2(g) → Fe2O3(s)
CuO(s) + H2(g) → Cu(s) + H2O(l)
4KClO3(aq) → 2KCl(aq) + 3O2(g)
2NO2(s) + Na(s) → N2(g) + Na2O(s)
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Reaksi berikut yang termasuk reaksi oksidasi menurut konsep serah terima elektron adalah...
Cu2+ + 2e- → Cu
Fe2+ + 2e- → Cu
Co2+ → Co3+ + e-
Cl2 + 2e- → 2 Cl-
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Pada reaksi:
Ni(s) + 2AgNO3(aq) → Ni(NO3)2(aq) + 2Ag(s)
Menurut reaksi di atas bagan sel volta dapat dituliskan dengan ....
Ni | Ni2+ || Ag+ | Ag
Ag | Ag+ || Ni2+ | Ni
Ni | Ag+ || Ni2+ | Ag
Ag | Ni2+ || Ag+ | Ni
Ni2+ | Ni || Ag | Ag+
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Logam X dapat mengendapkan tembaga dari larutan CuSO4, tetapi tidak dapat bereaksi dengan larutan ZnCl2. Jika disusun berdasrkan urutan kekuatan sifat reduktor, deret berikut yang benar adalah ....
Zn-Cu-X
Zn-X-Cu
X-Cu-Zn
Cu-X-Zn
X-Zn-Cu
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Logam A,B, dan C menunjukkan reaksi berikut :
C + B2+ --> tidak terjadi reaksi
A + 2C+--> A2+ + 2C
B + A2+ --> B2+ + A
Urutan ketiga logam tersebut sesuai dengan potensial reduksi yang meningkat adalah ....
C-B-A
B-A-C
B-C-A
A-C-B
C-B-A
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