
redoks

Quiz
•
Chemistry
•
9th - 12th Grade
•
Hard
Syahtriah Syarif
Used 6+ times
FREE Resource
14 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Pada reaksi Fe2+ + MnO4- → Fe3+ + Mn2+, pernyataan yang benar adalah ....
Fe2+ merupakan oksidator
Mn merupakan reduktor
bilangan oksidasi Mn dari +7 menjadi +2
bilangan oksidasi Mn dari +2 menjadi +7
setengah reaksi oksidasinya MnO4- → Mn2+
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Pernyataan yang benar tentang reaksi redoks tersebut adalah...
reduktor
oksidator
reduktor
hasil oksidasi
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Nilai bilangan oksidasi pada unsur bebas adalah ......
Sesuai muatan
-2
+1
0
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
CuO + H2 → Cu + H2O
Yang bertindak sebagai Oksidator adalah …
COOH
CuO
H2O
Cu
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Jumlah H+ dan elektron terlibat yang tepat untuk setengah reaksi oksidasi Cr3+ menjadi CrO42- pada suasana asam adalah ....
4H+ dan 3e-
8H+ dan 3e-
4H+ dan 6e-
8H+ dan 6e-
8H+ dan 7e-
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
aMnO4- + bSO32- → cMn2+ + dSO42- , setelah disetarakan harga a, b, c, dan d berturut-turut ....
2, 5, 6, 2
2, 5, 2, 3
2, 5, 2, 5
3, 5, 3, 5
5, 3, 3, 5
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Logam Al dapat mereduksi ion Os (Ar = 190) dalam larutan menurut reaksi belum
setara berikut :
Al (s) + Osn+ (aq) → Al3+ (aq) + Os (s)
Bila 18 g logam Al tepat mengendapkan 190 g padatan Os, maka nilai n adalah …
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