QUIZ ALKALI TANAH
Quiz
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Chemistry
•
12th Grade
•
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 10 pts
Yang manakah dari beberapa unsur berikut yang tidak termasuk unsur Alkali Tanah ?
Berilium (Br)
Magnesium (Mg)
Stronsium (Sr)
Fransium (Fr)
2.
MULTIPLE CHOICE QUESTION
30 sec • 10 pts
Manakah yang bukan termasuk karakteristik dari Magnesium (Mg) ?
Titik leleh (650°C)
Bersifat Paramagnetik
Bereaksi kuat dengan asam dan halogen
Berasa manis, namun sangat beracun
3.
MULTIPLE CHOICE QUESTION
30 sec • 10 pts
apa kegunaan dari Magnesium (Mg) ?
digunakan dalam suplemen kesehatan
dipakai untuk radioterapi kanker
digunakan untuk pengobatan paru paru
digunakan untuk industri kaca
4.
MULTIPLE CHOICE QUESTION
30 sec • 10 pts
Berapa Elektron valensi dari masing masing unsur Alkali tanah ?
1
2
3
4
5.
MULTIPLE CHOICE QUESTION
30 sec • 10 pts
Apakah benar Radium pernah digunakan dalam radioterapi kanker ?
Benar
Salah
6.
MULTIPLE CHOICE QUESTION
30 sec • 10 pts
Berapa titik leleh Kalsium (Ca) ?
882°C
822°C
842°C
824°C
7.
MULTIPLE CHOICE QUESTION
30 sec • 10 pts
Berapa presentase kelimpahan Stronsium (Sr) di kerak bumi ?
Sekitar 0,03%
Sekitar 0,01%
Sekitar 0,02%
Sekitar 0,04%
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