Latihan Soal Korosi

Quiz
•
Chemistry
•
12th Grade
•
Medium
ilham himawan
Used 6+ times
FREE Resource
15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
20 sec • 5 pts
Mudah atau tidaknya logam berkarat tergantung pada…
Banyaknya air
Kereaktifan logam
Suhu lingkungan
Tingkat kebasaan
Banyaknya oksigen
2.
MULTIPLE CHOICE QUESTION
20 sec • 5 pts
Berikut ini yang merupakan faktor-faktor penyebab terjadinya korosi adalah…
Air dan oksigen
Oksigen dan tanah
Tanah dan minyak
Larutan asam dan minyak
Minyak dan air
3.
MULTIPLE CHOICE QUESTION
20 sec • 5 pts
Dalam proses perkaratan besi, besi bertindak sebagai…
Katoda
Katalis
Jembatan garam
Anoda
Elektrolit
4.
MULTIPLE CHOICE QUESTION
20 sec • 5 pts
Pada proses perkaratan besi, reaksi yang terjadi di anoda adalah...
O2 + 4H+ + 4e- → 2H2O
2H2O → O2 + 4H+ + 4e-
2H2O + 2e- → H2 + 2OH–
Fe → Fe2+ + 2e-
Fe2+ → Fe3+ + e-
5.
MULTIPLE CHOICE QUESTION
30 sec • 6 pts
Prinsip pencegahan korosi dengan perlindungan katodik adalah...
Logam di anoda harus mudah direduksi
Bahan yang dilindungi berperan sebagai anoda
Logam di katoda harus mudah dioksidasi
Logam di katoda harus memiliki potensial reduksi yang lebih kecil daripada logam di anoda
Logam di katoda harus memiliki potensial reduksi yang lebih besar daripada logam di anoda
6.
MULTIPLE CHOICE QUESTION
20 sec • 7 pts
Jika diketahui larutan A, B, C, D dan E berturut-turut mempunyai pH = 4, 6, 7, 8 dan 9, manakah dari larutan tersebut yang paling cepat menyebabkan perkaratan pada besi?
A
B
C
D
E
7.
MULTIPLE CHOICE QUESTION
20 sec • 6 pts
Logam-logam berikut yang paling mudah mengalami korosi adalah…
Cu
Au
Zn
Pt
Ag
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