Ujian Sekolah - Kimia - SMA Al Amanah
Quiz
•
Chemistry
•
12th Grade
•
Hard
Sri Wahyuni Soalehe
Used 5+ times
FREE Resource
40 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
45 sec • 3 pts
Jika larutan CH3COOH 30 persen memiliki masa jenis 1,04 gcm-3, (Mr CH3COOH = 60), molaritas larutan CH3COOH tersebut adalah….
5,45
5,20
4,00
2,72
2.
MULTIPLE CHOICE QUESTION
45 sec • 3 pts
0,1 mol larutan A dilarutkan dalam 0,5 liter air, 0,5 mol larutan B dilarutkan dalam 5 liter air. Jika kedua larutan diukur pada temperatur yang sama, maka tekanan osmosis larutan A adalah….
0,2 kali larutan B
0,5 kali larutan B
2 kali larutan B
5 kali larutan B
3.
MULTIPLE CHOICE QUESTION
45 sec • 3 pts
Diketahui persamaan reaksi yang belum setara berikut :
a Fe2+ + b MnO4- + c H+ → d Fe3+ + e Mn2+ + f H2O
Setelah reaksi disetarakan perbandingan yang benar adalah....
a : b = 5 : 8
a : c = 5 : 1
b : e = 1 : 1
c : d = 5 : 8
4.
MULTIPLE CHOICE QUESTION
45 sec • 2 pts
Pernyataan yang benar mengenai sifat-sifat unsur dalam satu golongan dari atas ke bawah mempunyai kecenderungan ….
jari-jari atom berkurang
keelektronegatifan bertambah
afinitas elektron bertambah
energi ionisasi berkurang
5.
MULTIPLE CHOICE QUESTION
45 sec • 2 pts
Diantara zat-zat di bawah ini yang termasuk unsur adalah ….
nikrom
tembaga
kuningan
perunggu
6.
MULTIPLE CHOICE QUESTION
45 sec • 2 pts
Pemakaian khlor sebagai disinfektan air minum berdasarkan proses ….
reduksi
presipitasi
oksidasi
hidrogenasi
7.
MULTIPLE CHOICE QUESTION
45 sec • 2 pts
Dalam setiap gram pupuk urea, unsur yang mempunyai persen berat terbesar dalah ….
karbon
nitrogen
oksigen
hydrogen
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