Kimia
Quiz
•
Chemistry
•
10th - 12th Grade
•
Practice Problem
•
Hard
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40 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Konfigurasi elektron dari unsur Y2- yang nomor atomnya 16 adalah ...
1s2 2s2 2p6 3s2 3p6
1s2 2s2 2p6 3s2 3p4
1s2 2s2 2p6 3s2 3p2
1s2 2s2 2p6 3p4
1s2 2s2 2p6 3p2
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Atom X memiliki nomor atom 13 sedangkan atom Y memiliki nomor atom 17. Jika kedua atom ini berikatan, maka rumus kimia dan jenis ikatan pada senyawa yang terbentuk adalah ...
XY2, ikatan kovalen
XY3, ikatan ionik
XY3, ikatan kovalen
X3Y, ikatan ionik
X3Y, ikatan kovalen
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Jika atom 6C dengan atom 8O berikatan, bentuk molekul dan sifat kepolaran senyawa yang terjadi adalah….
linear, polar
linear, polar
bentuk V, polar
segitiga planar, polar
segitiga planar, non polar
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Pasangan senyawa berikut yang sifat molekulnya polar dan non polar berturut-turut ialah ...
CH4 dan CCl4
CH4 dan CCl4
CH4 dan CCl4
H2O dan NH3
CO2 dan H2O
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Besi bermassa 28 gram direaksikan dengan asam klorida sampai seluruhnya habis bereaksi menurut persamaan:
Fe(s) + HCl(aq) > FeCl2(aq) + H2(g) (belum setara)
Volume gas hidrogen yang dihasilkan jika diukur pada suhu 0°C dan tekanan 1 atm adalah ... (Ar Fe = 56)
0,50 L
1,12 L
1,12 L
2,24 L
2,24 L
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Hasil samping dari pembuatan besi adalah kalsium karbonat yang kemudian jika dicampur dengan pasir akan membentuk senyawa CaSiO3. Nama dari senyawa ini adalah ...
kalsium sulfida
kalsium sulfit
kalsium sulfit
kalsium silida
kalsium silida
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Atom-atom 15P, 8O, 7N, dan 9F memiliki nilai keelektronegatifan sebesar 4,0; 2,1; 3,0; dan 3,5. Atom yang memiliki kemampuan paling kecil untuk menarik elektron dan sesuai dengan nilai keelektronegatifannya adalah ...
P; 4,0
P; 2,1
F; 3,5
F; 3,5
N; 2,1
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