
Kelas 12 KIMIA
Authored by Yelly Jelita
Chemistry
Used 6+ times

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50 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 2 pts
Mudah atau tidaknya logam berkarat tergantung pada…
Banyaknya air
Suhu lingkungan
Tingkat kebasaan
Banyaknya oksigen
Kereaktifan logam
2.
MULTIPLE SELECT QUESTION
2 mins • 2 pts
Paku yang mengalami korosi paling cepat terjadi pada nomor …
1
2
3
4
5
3.
MULTIPLE SELECT QUESTION
2 mins • 2 pts
Berikut ini yang merupakan faktor-faktor penyebab terjadinya korosi adalah…
Air dan oksigen
Oksigen dan tanah
Tanah dan minyak
Minyak dan larutan asam
Minyak dan air
4.
MULTIPLE CHOICE QUESTION
2 mins • 2 pts
Rumus kimia karat besi adalah ….
Fe2O4.3H2O
Fe3O3.xH2O
Fe2O3.5H2O
Fe2O3.xH2O
Fe2O3.5H2O
5.
MULTIPLE CHOICE QUESTION
2 mins • 2 pts
Cara yang tepat dilakukan untuk melindungi hiasan rumah seperti di bawah ini yang terbuat dari besi dari peristiwa-peristiwa korosi adalah ….
dilapisi dengan perak
dilapisi dengan aluminium
proteksi katodik
dilumuri dengan oli
dilapisi dengan seng
6.
MULTIPLE CHOICE QUESTION
2 mins • 2 pts
Sifat-sifat unsur periode ketiga dari Na sampai Cl berikut adalah yang benar kecuali…
Sifat basa makin berkurang
Sifat asam makin bertambah
Afinitas elektron cenderung berkurang
Energi ionisasi cenderung bertambah
Keelektronegatifan unsur bertambah
7.
MULTIPLE CHOICE QUESTION
2 mins • 2 pts
Bahan baku utama dalam pembuatan almunium adalah ….
Dolomit
Magnesit
Pirit
Bauksit
Kalkopirit
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