
KIMIA UNSUR juniarti XII IPA
Quiz
•
Chemistry
•
1st - 10th Grade
•
Practice Problem
•
Medium
JUNIARTI DODI S
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40 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Urutan basa berikut jika disusun berdasarkan sifat basanya yang semakin lemah adalah.....
LiOH, NaOH, KOH dan RbOH
LiOH, NaOH, KOH, s]dan CsOH
CsOH, KOH, NaOH, dan LiOH
CsOH, KOH, RbOH, dan LiOH
CsOH, KOH, LiOH, dan NaOH
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Senyawa berikut ini menunjukkan sifat keamfoteran dan kelarutan hidroksida logam alkali tanah
Urutan semakin lemah dari basa logam alkali tanah berdasarkan data di atas adalah.....
1), 2), 3), 4), dan 5)
3), 2), 1), 5), dan 4)
4), 2), 1), 3), dan 5)
2), 5), 1), 4), dan 3)
3), 5), 1), 2), dan 4)
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
1. Perhatikan beberapa sifat unsure berikut!
1). Dapat membentuk ion positif
2). Kelektronegatifanya besar
3). Dapat membentuk asam kuat
4). Dalam air bersifat amfoter
5). Kurang reakstif terhadap unsure alkali
Sifat unsur yang tepat untuk golongan alkali adalah…
1) dan 2)
2) dan 3)
4) dan 5)
1) dan 5)
3) dan 4)
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Titik didih HF lebih tinggi dari HCl, hal ini kerena antara molekul molukel HF terdapat ikatan….
Ion
Hidrogen
Kovalen
Kovalen Koedinasi
Van der walls
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Aluminium oksida dapat bereaksi dalam suasana asam. Jika aluminium oksida direaksikan dengan larutan HCl, reaksi yang terjadi adalah…
Al2O3 (aq) + 2 HCl (aq) ------> 2 AlCl (aq) + H2 (g) + 3/2 O2 (g)
Al2O3 (s) + 6 HCl (aq) -----> 2 AlCl3 (aq) + 3 H2O(l)
2 Al2O3 (aq) + 6 HCl (aq) ------> 2 Al2(OH)3 (aq) + 3 Cl2 (g)
2 Al2O3 (aq) + 6 HCl (aq) ---> 2 Al2Cl3 (aq) + 3H2 (g) + 3O2 (g)
Al2O3 (s) + 2HCl (aq) -----> 2 Al (s) + H2 (g) + 3/2O2 (g) + Cl2 (g)
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Karbon mempunyai alotrop dengan kekerasan yang sangat tinggi, bahkan hingga sekarang tidak diketahui bahan lain yang kekerasannya melebihi alotrop karbon tersebut. Alotrop yang dimasud adalah…
Mika
Grafit
Intan
Galena
Cassitente
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Silikon dapat terbakar jika dipanaskan dengan oksigen jika dipanaskan cukup kuat. Senyawa yang dihasilkan berupa…
SiO
SiO2
siO3
Si2O3
Si3O2
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