Bilangan oksidasi Al pada AlCl3 adalah.....
OLIMPIADE KIMIA

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•
Chemistry
•
University
•
Medium
Kabinet Beryllium
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40 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 10 pts
-3
+3
-1
+1
-2
2.
MULTIPLE CHOICE QUESTION
1 min • 10 pts
Manakah unsur di bawah ini yang memiliki paling sedikit isotop yang bersifat stabil......
Hidrogen
Helium
sulfur
kalium
Oksigen
3.
MULTIPLE CHOICE QUESTION
2 mins • 10 pts
Suatu elektron terdapat pada tingkat energy yang dinyatakan oleh bilangan…
Bilangan kuantum azimut
Bilangan kuantum magnetik
Bilangan kuantum spin
Bilangan kuantum utama
Bilangan kuantum spin
4.
MULTIPLE CHOICE QUESTION
3 mins • 20 pts
Senyawa X mengandung Cl dengan tingkat oksidasi +7. Berikut ini manakah yang yang merupakan senyawa X.........
NH4ClO3
NH4Cl
N2H5Cl
NH4ClO4
NCl3
5.
MULTIPLE CHOICE QUESTION
2 mins • 10 pts
Dalam sistem periodik unsur, secara berurutan unsur lantanida dan aktinida terletak pada….
Periode 6 golongan IIIB dan periode 7 golongan IIIB
Periode 7 golongan IIB dan periode 6 golongan IIB
Periode 7 golongan IIIB dan periode 6 golongan IIB
Periode 6 golongan IIIB dan periode 6 golongan IIB
Periode 6 golongan IIB dan periode 7 golongan IIIB
6.
MULTIPLE CHOICE QUESTION
2 mins • 10 pts
partikel terberat yang dipancarkan unsur radioaktif adalah ..
sinar beta
sinar alpha
sinar x
positron
sinar gamma
7.
MULTIPLE CHOICE QUESTION
3 mins • 20 pts
Biloks tertinggi dari S adalah….
S8
SO2
S2
H2SO4
SO32-
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