
KEL 5 (2) MIPA 2
Authored by Marisi Hutajulu
Chemistry
12th Grade

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10 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 10 pts
Apa yang dimaksud dengan unsur golongan transisi periode 4?
Unsur alkali
Unsur gas mulia
Unsur logam
Unsur non-logam
2.
MULTIPLE CHOICE QUESTION
2 mins • 10 pts
Unsur manakah yang tidak termasuk dalam golongan logam transisi periode 4?
Nikel (Ni)
Tembaga (Cu)
Skandium (Sc)
Brom (Br)
3.
MULTIPLE CHOICE QUESTION
2 mins • 10 pts
Proses pembuatan titanium dimulai dengan mengubah bijih apa?
TiO2
Fe2O3
CuO
ZnO
4.
MULTIPLE CHOICE QUESTION
2 mins • 10 pts
Apa yang digunakan untuk mereduksi V2O5 dalam pembuatan ferrovanadium?
Natrium
Karbon
Silicon dan besi
Aluminium
5.
MULTIPLE CHOICE QUESTION
2 mins • 10 pts
Reaksi apa yang digunakan untuk memproduksi kromium?
Cr2O3 + 2Al → Al2O3 + 2Cr
2Cr + O2 → 2CrO3
Cr + H2O → Cr(OH)2
CrO4 + 2H+ → Cr2O3 + H2O
6.
MULTIPLE CHOICE QUESTION
2 mins • 10 pts
Bagaimana cara pembuatan mangan?
Dengan distilasi
Dengan mereduksi oksida mangan
Dengan elektrolisis air
Dengan proses pengendapan
7.
MULTIPLE CHOICE QUESTION
2 mins • 10 pts
Apa bahan baku yang diperlukan untuk mendapatkan besi?
Bijih tembaga dan karbon
Bijih besi, karbon, dan batu kapur
Bijih nikel dan air
Bijih seng dan oksigen
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