PreeTest dan PostTest Konsep Reaksi Redoks

Quiz
•
Chemistry
•
10th Grade
•
Hard
leni yunita
Used 7+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Jawablah soal-soal latihan berikut tanpa melihat kunci jawaban!
Pernyataanberikutyang benarberkaitandenganreaksi reduksi adalah....
Reaksi melepaskan elektron
Reaksi menerima proton
Reaksi pelepasan oksigen
Reaksi penggabungan oksigen
Reaksi pelepasan hidrogen
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Apabila suatu unsur melepas elektron, maka ....
Bilangan oksidasinya akan turun
Unsur tersebut mengalami reduksi
Reaktivitasnya akan meningkat
Unsur tersebut mengalami oksidasi
Reaktivitasnya akan menurun
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Salah satu contoh dari reaksi reduksi adalah ....
Pernapasan
Karat besi
Fotosintesis
Pembakaran
Perubahan warna cokelat pada irisan buah apel ketika dibiarkan di udara
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Perhatikan reaksi-reaksi berikut ini:
(1) C (s) + O2 (g) → CO2 (g)
(2) MgO (s) → Mg (s) + ½ O2 (g)
(3) 2S (s) + 3O2 (g) → SO3 (g)
(4) H2O (l) → H2 (g) + ½ O2 (g)
Di antara reaksi-reaksi di atas yang merupakan reaksi reduksi adalah….
(1) dan (2)
(2) dan (3)
(1) dan (3)
(1) dan (2)
(2) dan (4)
5.
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
2 BaO2 →2 BaO + O2
2K + O2 →2K2O
Cu2O + H2→2 Cu + H2O
2Na2O2 →2 Na2O + O2
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Dari beberapa reaksi berikut :
(1) Al3+ + 3OH- Al(OH)3
(2) Zn + H2SO4 ZnSO4 + H2
(3) Pb2+ + 2 Br- PbBr2
(4) H2 + Cl2 2 HCl
(5) HF + NH3 NH4F
yang merupakan reaksi redoks adalah ….
(1) dan (2)
(1) dan (3)
(2) dan (3)
(2) dan (4)
(3) dan (5)
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Berikut adalah reaksi redoks senyawa klor:
(1) ClO2- → ClO3-
(2) ClO4- → Cl-
(3) ClO2- → ClO-
(4) ClO- → ClO4-
(5) Cl2 → ClO3-
yang bertindak sebagai oksidator terdapat pada reaksi....
(1) dan (2)
(1) dan (3)
(2) dan (3)
(3) dan (4)
(4) dan (5)
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