
Kimia Unsur - Golongan IIA
Quiz
•
Chemistry
•
12th Grade
•
Hard
Siti Pratiwi
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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
Unsur logam golongan alkali tanah yang memberikan warna merah pada kembang api adalah ....
magnesium
kalsium
stronsium
barium
2.
MULTIPLE CHOICE QUESTION
45 sec • 2 pts
Diantara pernyataan di bawah ini merupakan sifat unsur golongan alkali tanah, kecuali ....
mudah bereaksi dengan air membentuk basanya dan gas hidrogen
bervalensi 2 dalam semua senyawanya tanpa terkecuali
dapat bereaksi dengan asam membentuk garamnya dan gas hidrogen
terdapat di alam dalam keadaan bebas, kecuali unsur yang paling bebas
3.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
unsur logam alkali tanah yang bersifat radioaktif adalah ....
fransium
radium
kalsium
barium
4.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
senyawa logam alkali tanah yang digunakan untuk menentralkan asam lambung adalah ....
MgO
BeO
BaSO4
CaCO3
5.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
Kulit telur banyak mengandung senyawa unsur golongan alkali tanah dengan nama dolomit. Rumus kimia dolomit adalah ....
Be3Al2(SiO3)6
MgCO3.CaCO3
MgSO4.KCl
BeSO4.BaSO4
6.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
Batu kapur merupakan sumber ditemukan salah satu unsur golongan IIA. Unsur golongan IIA yang terkandung dalam batu kapur adalah ....
Berilium
Magnesium
Kalsium
Stronsium
7.
MULTIPLE CHOICE QUESTION
45 sec • 2 pts
Pernyataan yang benar tentang sifat fisika unsur-unsur golongan IIA adalah ....
massa atom dari atas ke bawah semakin kecil
titik didih dari atas ke bawah semakin besar
energi ionisasi dari atas ke bawah semakin besar
jari-jari atom dari atas ke bawah semakin besar
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