
USP Kimia
Quiz
•
Chemistry
•
12th Grade
•
Practice Problem
•
Hard
smam 3tanjunganom
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40 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Harga keempat bilangan kuantum elektron terakhir dari atom 11Na adalah
n = 3, l = 0, m = 0, s = -1/2
n = 3, l = 0, m = 0, s = +1/2
n = 3, l = 1, m = 1, s = +1/2
n = 3, l = 1, m = 1, s = -1/2
n = 2, l = 1, m = 0, s = +1/2
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Pernyataan di bawah ini yang benar adalah
Jari-jari atom 12Mg lebih kecil daripada 16S
Jari-jari atom 13Al lebih besar daripada 12Mg
Energi ionisasi 16S lebih besar daripada 17Cl
Afinitas elektron 13Al lebih besar daripada 16S
Elektronegativitas 8O lebih besar daripada 13Al
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Perhatikan struktur Lewis molekul H2SO4 di atas. Ikatan kovalen koordinat ditunjukkan oleh ikatan nomor
1
2
3
4
5
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Gaya antar molekul yang bekerja pada molekul HF sehingga mempunyai titik didih yang lebih tinggi daripada HCl adalah
Gaya dipol-dipol
Gaya dispersi
Ikatan hidrogen
Gaya imbas
Ikatan kovalen
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Dalam kehidupan sehari-hari, karbit sering digunakan untuk pengelasan logam karena gas yang dihasilkan dari reaksi karbit dengan air mempunyai sifat mudah terbakar, nyala terang dan berkalor tinggi. Reaksi yang benar dari peristiwa tersebut adalah
CaC2 (s) + 2H2O (l) → Ca(OH)2 (aq) + C2H2 (g)
CaC2 (s) + 5/2 O2 (g) → CaO (s) + 2CO2 (g)
CaC2 (s) + 2H2O (l) + 3/2 O2 (g) →CaCO3 (s) + 2H2 (g) + CO2 (g)
CaC2 (s) + 2H2O (aq) → CaO (s) + CH4 (g) + CO(g)
CaC2 (s) + 2H2O (s) → Ca(OH)2 (l) + C2H2 (g)
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Suatu senyawa hidrokarbon tersusun dari 80% C dan 20% H. Jika massa molekul relatif senyaa tersebut 30 maka rumus molekul senyawa tersebut adalah
CH3
C2H6
C3H6
C2H4
C3H8
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Berapa volume air yang diperlukan untuk membuat larutan 4,5 gram C6H12O6 0,1 M? (Mr = 180 g/mol)
500 mL
250 mL
1L
50 mL
100 mL
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