KUIS KIMIA UNSUR : GAS MULIA
Quiz
•
Chemistry
•
12th Grade
•
Practice Problem
•
Hard
rafini margono
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10 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Pernyataan di bawah ini yang benar tentang sifat gas mulia adalah ....
xenon paling sukar bereaksi
berupa molekul monoatomik
elektron valensinya 8
orbitalnya ada yang terisi penuh
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Unsur gas mulia berikut yang paling mudah bereaksi dengan fluorin adalah....
helium
neon
kripton
xenon
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Kemampuan gas mulia untuk bereaksi sangat kurang karena …
konfigurasi elektronnya stabil
mempunyai jumlah elektron genap
terletak dalam golongan VIIIA
energi ionisasinya besar
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Diketahui sifat fisis gas mulia:
Dari data tampak bahwa titik leleh dan titik didih unsur-unsur gas mulia semakin tinggi. Hal ini disebabkan oleh ....
elektron valensinya
energi ionisasinya
keelektronegatifannya
massa atomnya
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Jumlah pasangan elektron bebas yang terdapat di kulit terluar atom pusat dalam molekul senyawa XeF2 dan XeF4 adalah ....
2 dan 4
4 dan 2
2 dan 3
3 dan 2
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Gas alam mengandung hidrokarbon dan zat lain seperti CO2, uap air, He dan zat pengotor lain. Proses pemisahan He dilakukan dengan proses kriogenik dan adsorpsi.
benar
salah
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Pada pemisahan ekstraksi unsur gas mulia diproses menggunakan proses destilasi fraksional menggunakan kolom destilasi. Prinsip pemisahan ini adalah perbedaan titik beku zat.
benar
salah
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