
Alkali Tanah
Authored by Drs. Mt
Chemistry
12th Grade
Used 15+ times

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10 questions
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1.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Dari sifat-sifat logam alkali tanah, pernyataan yang benar adalah....
Energi ionisasi makin kecil
Memiliki elektron valensi 2
Lebih reaktif dari alkali
magnesium lebih reaktif dari kalsium
logam alkali tanah lebih keras dari alkali
2.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Bila logam magnesium dibakar di udara akan dihasilkan....
MgO
Mg(OH)2
Mg3N2
MgO dan Mg(OH)2
MgCO3
3.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Bila pita Magnesium dibakar lalu abu hasil pembakarannya dimasukkan ke dalam air yang telah ditetesi indikator penolptalin, pernyataan yang benar adalah... .
larutan berubah menjadi berwarna merah
larutan berubah warna menjdi biru
larutan tidak berubah warna
terbentuk senyawa basa, Mg(OH)2
larutan tidak berubah warna
4.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Salah satu sifat logam alkali tanah yaitu bila dibakar memberikan warna nyala yang khas. Pernyataan berikut yang benar adalah... .
magnesium berwarna biru
stronsium berwarna merah
berilium berwarna putih
barium berwarna hijau
kalsium berwarna putih
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Penyakit maag disebabkan kelebihan asam lambung. Senyawa yang biasa digunakan untuk menetralkan asam lambung adalah... .
MgSO4
Ca(OH)2
Mg(OH)2
CaSO4
CaCO3
6.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Manakah pernyataann berikut yang benar tentang logam alkali tanah?
sifat basa makin ke bawah makin kuat
makin kebawah makin lemah sifat logamnya
memiliki warna nyala
tidak berekasi dengan air
kecuali Be bereaksi dengan air
7.
MULTIPLE SELECT QUESTION
1 min • 1 pt
Dari data Ksp senyawa alkali tanah di samping, pernyataan yang benar adalah... .
garam sulfat makin sukar larut
garam kromat makin mudah larut
garam oksalat mudah larut
semua garam karbonat sukar larut
garam sulfat makin mudah larut
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