
korosi 12
Authored by HERA DHARMAYETTI
Chemistry
12th Grade

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10 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 10 pts
Faktor-faktor berikut yang mepengaruhi terjadinya korosi adalah ….
pemanasan
kelembaban udara
kualitas logam
pendinginan
2.
MULTIPLE CHOICE QUESTION
1 min • 10 pts
Kapal yang berada di laut lebih cepat berkarat daripada kapal di sungai. faktor yang paling dominan mempengaruhi perkaratan pada kapal di laut adalah ....
elektrolit
suhu
pH
H2O
3.
MULTIPLE CHOICE QUESTION
1 min • 10 pts
Paku yang mengalami korosi paling cepat terjadi pada nomor...
1
2
3
4
4.
MULTIPLE CHOICE QUESTION
30 sec • 10 pts
Pada peristiwa korosi, besi mengalami oksidasi, sedangkan yang mengalami reduksi adalah …
H+
O2
OH-
H2O
5.
MULTIPLE CHOICE QUESTION
30 sec • 10 pts
Rumus kimia karat besi adalah ….
Fe3O3.xH2O
Fe2O3.5H2O
Fe2O3.xH2O
Fe2O3.5H2O
6.
MULTIPLE CHOICE QUESTION
30 sec • 10 pts
Faktor – faktor berikut menyebabkan korosi, kecuali …
suhu
minyak
pH
H2O
7.
MULTIPLE CHOICE QUESTION
30 sec • 10 pts
Cara yang tepat dilakukan untuk melindungi hiasan rumah yang terbuat dari besi dari peristiwa-peristiwa korosi adalah ....
dilapisi dengan perak
dilapisi dengan aluminium
proteksi katodik
dilumuri dengan oli
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