
quiz korosi
Authored by Muzeliati Muzeliati
Chemistry
12th Grade
Used 5+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Apa yang menjadi penyebab utama terjadinya korosi logam?
Paparan sinar matahari yang berlebihan
Penggunaan bahan kimia yang tidak tepat
Kurangnya perawatan dan pemeliharaan logam
Reaksi kimia antara logam dengan oksigen dan air
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Faktor-faktor berikut yang mepengaruhi terjadinya korosi adalah ….
pemanasan
kelembaban udara
pendinginan
waktu pemakaian
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Perlindungan korosi yang paling tepat dilakukan untuk melindungi logam pada bagian mesin yang berputar adalah ….
mengecat
melumuri dengan oli
perlindungan katodik
dibalut dengan emas
4.
MULTIPLE CHOICE QUESTION
30 sec • 5 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
galvanic coupling
H2O
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cara yang tepat dilakukan untuk mencegah agar besi penyangga tugu ini tidak berkarat adalah dengan .....
dilapisi dengan perak
dilapisi dengan Cat anti karat
dilumuri dengan oli
dilapisi dengan seng
6.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Rumus kimia karat besi adalah ….
Fe2O4.3H2O
Fe3O3.xH2O
Fe2O3.xH2O
Fe2O3.5H2O
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Pada peristiwa korosi spesi yang mengalami reduksi adalah . . . .
H+
OH-
O2
Fe+2
Fe+3
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