Unsur Alkali Dan Alkali Tanah

Quiz
•
Chemistry
•
2nd Grade
•
Medium
junia astiningsih
Used 32+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Basa alkali tanah yang paling mudah larut dan mempunyai sifat basa kuat adalah...
Be(OH)2
Mg(OH)2
Ca(OH)2
Ba(OH)2
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pernyataan tentang natrium berikut yang tidak benar adalah..
titik leleh rendah
titik didih tinggi
harus disimpan dalam minyak tanah
reaksi dengan air bersifat endoterm
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Berikut warna nyala garam alkali dan alkali tanah :
1) kuning 2) hijau 3) Biru 4) ungu 5) merah
warna nyala unsur barium dan kalium berturut-turut adalah...
1 dan 2
3 dan 5
2 dan 4
1 dan 5
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Logam alkali yang bersifat radioaktif adalah...
Fr
K
Na
Rb
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Berikut ini beberapa sifat fisika/kimia suatu zat:
1. mudah melepas elektron
2. merupakan logam lunak
3. isolator yang baik
4. mempunyai titik leleh yg sangat rendah
sifat unsur logam alkali terdapat pada nomor...
1 dan 2
1 dan 3
1 dan 4
2 dan 3
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
berikut ini beberapa sifat unsur :
1. berwujud padat
2. memiliki beberapa bilangan oksidasi
3. mudah membentuk ion bermuatan +2
4. membentuk unsur diatomik
sifat yang memiliki unsur alkali tanah terdapat pada nomor...
1 dan 2
1 dan 3
1 dan 4
2 dan 4
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Senyawa alkali tanah yang terkenal dengan sebutan garam inggris adalah...
CaSO4. 2 H2O
CaCO3
MgSO4. 7 H2O
Mg(OH)2
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