
REDOKS 1
Quiz
•
Chemistry
•
10th Grade
•
Practice Problem
•
Medium
Vincen 34 wardani
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20 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Reaksi berikut yang merupakan redoks adalah ….
AgNO3 + NaCl → AgCl + NaNO3
SO3 + KOH → K2SO4 + H2O
Cl2 + SO2 + H2O → HCl + H2SO4
CuO + 2H → Cu2 + H2O
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Perhatikan persamaan reaksi redoks berikut:
K2Cr2O, (s) + 14HCl (aq) 2KCl(aq) 2CrCl3 (aq) + 3Cl2 (g) + 7H2O(l).
Unsur-unsur yang mengalami perubahan bilangan oksidasi pada persamaan reaksi redoks tersebut adalah ….
H dan O
Cr dan Cl
O dan Cl
K dan Cl
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Reaksi berikut termasuk reaksi oksidasi jika dilihat dari kemampuan menerima atau melepaskan oksigen adalah
2Na2O → 4 Na + O2
2Na2O2 →2 Na2O + O2
2 BaO2 →2 BaO + O2
2K + O2 →2K2O
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Bilangan oksidasi atom Cl tertinggi di antara senyawa berikut adalah …
Cl2
KClO
KCl
KClO3
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
CuO + H2 → Cu + H2O
Yang bertindak sebagai Oksidator adalah …
COOH
CuO
H2O
Cu
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
MnO2 + 4HCl → MnCl2 + 2H2O + Cl2
Yang bertindak sebagai Reduktor adalah . . .
HCl
MnCl2
MnO2
2H2O
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Definisi reaksi oksidasi yang benar adalah ...
Pelepasan Oksigen
Pelepasan elektron
Penurunan Bilangan Biloks
Pengikatan Hidrogen
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