
KOROSI
Chemistry
12th Grade
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8 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Berdasarkan gambar di atas, salah satu factor yang mempengaruhi korosi adalah….
air
larutan garam
jenis logam
cara mengecat
cara memberikan minyak
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Berdasarkan gambar tersebut, paku yang mengalami korosi paling cepat adalah….
I
II
III
IV
V
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Berikut ini adalah faktor-faktor yang dapat mempercepat terjadinya korosi, kecuali ....
Banyak uap air di sekitar logam
Bersinggungan langsung dengan udara
Banyak oksigen di sekitar logam
Banyak terdapat uap asam di sekitar logam
Di sekitar logam tidak ada oksigen
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Berdasarkan gambar di atas , urutan kecepatan korosi dimulai dari yang tercepat hingga terlambat, adalah….
1, 2, 3, 4, 5
2, 4, 5, 3, 1
5, 2, 1, 3, 4
5, 3, 2, 4, 1
3, 4, 5, 2, 1
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Pencegahan korosi pada pipa bawah tanah dilakukan dengan melapisi pipa bawah tanah dengan logam Magnesium. Pencegahan korosi tersebut sering disebut dengan ….
Pengecatan
Pelumuran
Perlindungan Galvani
Perlindungan Katodik
Perlindungan Anodik
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Berdasarkan gambar di atas maka korosi pada menara dapat dihindari dengan….
Dilapisi timah
Direndam dengan air
Dibakar lalu ditempa
Dicelupkan pada larutan asam
Dihubungkan dengan lempeng magnesium
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Disajikan pasangan data antara benda dengan cara pencegahan korosi berikut :
No Benda Cara pencegahan korosi
1 Pipa Ledeng Dicat
2 Setang sepeda Dilapisi krom
3 Rak piring Dilapisi plastic
4 Badan mobil Dilapisi krom
5 Pagar rumah Dihubungkan dengan magnesium
Pasangan data yang berhubungan dengan tepat adalah . . . .
1 dan 2
1 dan 4
2 dan 3
3 dan 5
4 dan 5
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