
Reaksi Redoks dan Elektrokimia
Quiz
•
Chemistry
•
1st - 3rd Grade
•
Hard
Standards-aligned
Inmaryudiana Yudi
Used 5+ times
FREE Resource
25 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
2 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
2 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
2 mins • 1 pt
Perkembangan konsep reaksi reduksi dinyatakan dengan tiga hal berikut :
(1) penangkapan elektron,
(2) pelepasan oksigen,
(3) penurunan bilangan oksidasi
Urutan pengertian reduksi yang benar adalah ...
(1), (2), dan (3)
(1), (3), dan (2)
(3), (2), dan (1)
(2), (1), dan (3)
(3), (1), dan (2)
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Perhatikan reaksi redoks berikut:
2MnO4 + 2C2O42- + 16H+ → 2Mn2+ + 4CO2 + 8H2O
Pernyataan yang benar mengenai reaksi redoks tersebut adalah ….
C2O42- mengalami reaksi oksidasi karena bilangan oksidasi O mengalami kenaikan
C2O42- mengalami reaksi reduksi karena bilangan oksidasi C mengalami penurunan
MnO42- mengalami reaksi reduksi karena bilangan oksidasi O mengalami penurunan
MnO42- mengalami reaksi oksidasi karena bilangan oksidasi Mn mengalami kenaikan
MnO42- mengalami reaksi reduksi karena bilangan oksidasi Mn mengalami penurunan
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Dari beberapa reaksi berikut ini yang merupakan reaksi redoks adalah…
Ag+ + Cl- → AgCl
H+ + Cl- → HCl
NaOH + HCl → NaCl + H2O
CuO + 2H+ → Cu2+ + H2O
Cu2+ + Zn → Cu + Zn2+
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Pada reaksi berikut:
K2Cr2O7 + H2SO4 + FeSO4 → K2SO4 + Cr2(SO4)3 + Fe2(SO4)3 +H2O
Yang berperan sebagai reduktor adalah …
K2Cr2O7
H2SO4
FeSO4
Cr2(SO4)3
H2O
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Pada reaksi :
2Ag+ + Zn → 2Ag + Zn2+
Yang benar adalah …
Zn sebagai oksidator dan Ag reduktor
Zn sebagai oksidator dan Ag+ reduktor
Zn sebagai reduktor dan Ag oksidator
Zn sebagai reduktor dan Ag+ oksidator
Zn2+ sebagai reduktor dan Ag+ oksidator
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