
UAS KELAS XII IPA 2
Authored by IMELDA WIJAYANTI
Chemistry
12th Grade
Used 1+ times

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8 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 10 pts
Perhatikan pernyataan-pernyataan berikut!
1) Konsentrasi molar
2) Konsentrasi molal
3) Fraksi mol
4) Osmosis reserve
5) Konsep mol
Cara menyatakan konsentrasi larutan yang benar adalah nomor….
1,2 dan 3
1,2 dan 4
2,3, dan 4
2,3 dan 5
3,4,dan 5
2.
MULTIPLE CHOICE QUESTION
30 sec • 10 pts
Perhatikan pernyatan-pernyataaan berikut.
1) Penurunan titik didih
2) Kenaikan tekanan osmosis
3) Kenaikan tekanan uap
4) Penurunan titik beku
5) Kenaikan titik didih
Adanya zat terlarut mengakibatkan hal yang ditunjukkan oleh nomor….
1 dan 2
2 dan 3
2 dan 4
3 dan 5
4 dan 5
3.
MULTIPLE CHOICE QUESTION
30 sec • 10 pts
Sebanyak 46 gram gliserol (Mr= 92) dicampur dengan 27 gram air (Mr=18) . jika tekanan uap air pada suhu tersebut sama dengan 30 mmHg, penurunan tekanan uap jenuh adalah….. mmHg.
5,5
7,5
12, 5
22,5
37,5
4.
MULTIPLE CHOICE QUESTION
30 sec • 10 pts
Garam-garam seperti NaCl dan CaCl2 sering ditaburkan di jalan-jalan di kota New York pada bulan desember, tindakan ini bertujuan untuk…….
Mengendapkan air hujan
Mengkristalkan uap air
Mencairkan salju
Membekukan udara di jalan
Menghilangkan lintah
5.
MULTIPLE CHOICE QUESTION
30 sec • 10 pts
Menurut konsep reaksi redoks sebagai pengikat dan pelepas oksigen,zat yang mengikat oksigen disebut …..
Reduktor
Oksidator
Reduktor
Oksidasi
Redoks
6.
MULTIPLE CHOICE QUESTION
30 sec • 10 pts
Menurut konsep reaksi redoks sebgai reaksi pengikat dan pelepasan electron, zat yang mengikat electron disebut ….
Reduktor
Oksidator
Reduksi
Oksidasi
Redoks
7.
MULTIPLE CHOICE QUESTION
30 sec • 10 pts
Sel volta memanfaatkan prinsip kerja ….
Sel elektrolisis
sel elektrokomia
Koligatif larutan
Koloid
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