XII.2 PSAJ KIMIA T.P. 2024-2025
Quiz
•
Chemistry
•
12th Grade
•
Practice Problem
•
Hard
Supriyatna Agus
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35 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Manakah dari reaksi berikut yang merupakan contoh reaksi redoks yang dapat disetarakan menggunakan metode setengah sel?
CO₂ + H₂O → H₂CO
2Na + Cl₂ → 2NaCl
H₂ + O₂ → H₂O
Zn + CuSO₄ → ZnSO₄ + Cu
CaO + H₂O → Ca(OH)₂
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Tentukan persamaan reaksi yang setara untuk reaksi redoks berikut:
MnO₄⁻ + Fe²⁺ → Mn²⁺ + Fe³⁺ (asam)
MnO₄⁻ + 5Fe²⁺ + 8H⁺ → Mn²⁺ + 5Fe³⁺ + 4H₂O
MnO₄⁻ + 3Fe²⁺ + 4H⁺ → Mn²⁺ + 3Fe³⁺ + 2H₂O
MnO₄⁻ + 2Fe²⁺ + 3H⁺ → Mn²⁺ + 2Fe³⁺ + H₂O
MnO₄⁻ + Fe²⁺ + H⁺ → Mn²⁺ + Fe³⁺
MnO₄⁻ + 4Fe²⁺ + 7H⁺ → Mn²⁺ + 4Fe³⁺ + 3H₂O
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Tentukan persamaan reaksi yang setara untuk reaksi redoks berikut:
Cr₂O₇²⁻ + Sn²⁺ → Cr³⁺ + Sn⁴⁺ (asam)
Cr₂O₇²⁻ + 3Sn²⁺ + 14H⁺ → 2Cr³⁺ + 3Sn⁴⁺ + 7H₂O
Cr₂O₇²⁻ + 3Sn²⁺ + 6H⁺ → 2Cr³⁺ + 3Sn⁴⁺ + 3H₂O
Cr₂O₇²⁻ + 2Sn²⁺ + 4H⁺ → 2Cr³⁺ + 2Sn⁴⁺ + 2H₂O
Cr₂O₇²⁻ + Sn²⁺ + 2H⁺ → 2Cr³⁺ + Sn⁴⁺ + H₂O
Cr₂O₇²⁻ + 5Sn²⁺ + 12H⁺ → 2Cr³⁺ + 5Sn⁴⁺ + 6H₂O
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Tentukan persamaan reaksi yang setara untuk reaksi redoks berikut:
MnO₄⁻ + C₂O₄²⁻ → MnO₂ + CO₃²⁻ (basa)
2MnO₄⁻ + 3C₂O₄²⁻ + 4OH⁻ → 2MnO₂ + 6CO₃²⁻ + 2H₂O
MnO₄⁻ + 3C₂O₄²⁻ + 4OH⁻ → MnO₂ + 6CO₃²⁻ + 2H₂O
MnO₄⁻ + 2C₂O₄²⁻ + 3OH⁻ → MnO₂ + 4CO₃²⁻ + H₂O
MnO₄⁻ + C₂O₄²⁻ + 2OH⁻ → MnO₂ + 2CO₃²⁻
MnO₄⁻ + 4C₂O₄²⁻ + 7OH⁻ → MnO₂ + 8CO₃²⁻ + 4H₂O
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Apa yang dimaksud dengan sel elektro kimia?
Sel yang mengubah energi listrik menjadi energi kimia
Sel yang mengubah energi kimia menjadi energi listrik
Sel yang mengubah energi mekanik menjadi energi listrik
Sel yang mengubah energi termal menjadi energi listrik
Sel yang mengubah energi radiasi menjadi energi listrik
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Apa yang dimaksud dengan katoda dalam sel elektro kimia?
Elektroda tempat reaksi netral terjadi
Elektroda tempat reaksi penggabungan terjadi
Elektroda tempat reaksi penguraian terjadi
Elektroda tempat reaksi reduksi terjadi
Elektroda tempat reaksi oksidasi terjadi
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Manakah dari reaksi berikut yang merupakan contoh reaksi reduksi dalam sel elektro kimia?
Cu → Cu²⁺ + 2e⁻
H₂ → 2H⁺ + 2e⁻
Zn²⁺ + 2e⁻ → Zn
O₂ + 4H⁺ + 4e⁻ → 2H₂O
Fe → Fe²⁺ + 2e⁻
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