
KEL 1 (2) MIPA 2
Authored by Marisi Hutajulu
Chemistry
12th Grade

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10 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 10 pts
Apa proses yang digunakan untuk memperoleh magnesium dari air laut?
Proses Hall-Heroult
Proses Frasch
Proses Bayer
Proses Downs
2.
MULTIPLE CHOICE QUESTION
1 min • 10 pts
Apa yang digunakan sebagai katode dalam proses Hall-Heroult untuk aluminium?
Air
Kriolit
Bauksit
Karbon
3.
MULTIPLE CHOICE QUESTION
1 min • 10 pts
Reaksi apa yang terjadi saat silikon diperoleh dari SiO2?
SiO2 + 2C → Si + 2CO
Si + 2H2 → SiH4
SiO2 + H2 → Si + H2O
SiCl4 + 2H2 → Si + 4HCl
4.
MULTIPLE CHOICE QUESTION
1 min • 10 pts
Apa yang digunakan untuk memproduksi fosfor putih?
Kalsium fosfat dan karbon
Silikon dan klorida
Alumina dan air
Bauksit dan kriolit
5.
MULTIPLE CHOICE QUESTION
1 min • 10 pts
Apa metode yang digunakan untuk mengolah belerang dari batuan di permukaan tanah?
Proses Claus
Proses Frasch
Proses Sisilia
Proses Bayer
6.
MULTIPLE CHOICE QUESTION
1 min • 10 pts
Apa yang terjadi pada anode saat elektrolisis klorin?
MnO2 + 2Cl → Cl2 + Mn2+ + 2H2O
2H2O → O2 + 4H+ + 4e-
Cl2 + 2e- → 2Cl
2Cl → Cl2 + 2e-
7.
MULTIPLE CHOICE QUESTION
1 min • 10 pts
Dari mana argon-40 berasal?
Proses elektrolisis
Pengolahan bauksit
Peluruhan kalium-40
Reaksi nukleosintesis
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