
10th Grade - Chemistry Exam
Authored by Rafi Fauzi
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10th Grade
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25 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Perbedaan antara ion Na+ dengan atom natrium adalah:
Ion Na+ kekurangan 1 elektron
Ion Na+ kelebihan 1 proton
Ion Na+ kekurangan 1 proton
Ion Na+ kelebihan 1 elektron
Ion Na+ kekurangan 1 neutron
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Unsur yang mengikat dua electron untuk mendapatkan konfigurasi electron yang stabil adalah ….
11Na
14Si
16S
19K
20Ca
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Kelompok senyawa yang semuanya berikatan ion adalah ….
NH3, CO2, dan H2O
NH3, CO2, dan H2O
NaCl, HCl, dan H2O
KCl, NaI, dan MgBr2
H2, Cl2, dan NaI
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Diantara pasangan unsur berikut yang dapat membentuk senyawa ion adalah ….
C (Z = 6) dan Cl (Z = 17)
N (Z = 7) dan H (Z = 1)
C (Z = 6) dan O (Z = 8)
Mg (Z = 12) dan Cl (Z = 17)
P (Z = 15) dan O (Z = 8)
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Dua buah unsur memiliki notasi 11X dan 17Y. Bila kedua unsur tersebut berikatan maka senyawa yang dihasilkan adalah ….
XY2
XY3
X2Y
X2Y2
X2Y
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Unsur X dan Y membentuk senyawa dengan rumus kimia XY3. Kemungkinan nomor atom X dan Y adalah ….
3 dan 5
3 dan 9
5 dan 7
5 dan 9
7 dan 13
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Unsur X dengan konfigurasi elektron 1s2 2s2 2p6 3s2 dapat bereaksi dengan unsur Y yang terletak pada golongan oksigen, membentuk senyawa:
XY
X2Y
X2Y3
X3Y
XY2
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