
Soal Ulangan Kimia Kelas 12
Quiz
•
Chemistry
•
12th Grade
•
Hard
Sarmian Sitanggang
Used 3+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pencegahan perkaratan menggunakan pelumuran oli atau minyak lebih cocok untuk benda...
Gear pada mesin motor
Pagar
Kompor
Kawat
Paku
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dalam proses perkaratan besi, besi bertindak sebagai…
Katoda
Anoda
Katalis
Jembatan garam
Elektrolit
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Faktor-faktor yang berasal dari lingkungan berikut ini dapat mempengaruhi korosi kecuali...
Suhu
Udara
Keasaman
Kelembaban
Struktur bahan
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Berdasarkan reaksi redoks pada proses perkaratan, lingkungan seperti apa yang menyebabkan besi mudah berkarat?
Kering
Lembab
Vakum
Berminyak
Panas
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Berikut tentang cara pencegahan perkaratan dengan cara pelapisan logam menggunakan logam krom (Cr) kecuali…
Dilakukan dengan elektrolisis
Tidak mudah berkarat
Memberikan penampilan mengkilat
Biasa digunakan untuk melapisi bamper mobil
Besi tidak berkarat meskipun sebagaian lapisan crom rusak
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mudah atau tidaknya logam berkarat tergantung pada…
Banyaknya air
Kereaktifan logam
Suhu lingkungan
Tingkat kebasaan
Banyaknya oksigen
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
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?
Larutan A
Larutan B
Larutan C
Larutan D
Larutan E
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