Ujian Sekolah Kimia TKJ 2022
Quiz
•
Chemistry, Physics
•
12th Grade
•
Practice Problem
•
Hard
Maryati Djamaludin
Used 1+ times
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40 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tabel berikut menyatakan tentang rumus senyawa dan namanya!
Pasangan yang benar antara rumus senyawa dan namanya adalah . . . .
1 dan 3
1 dan 4
2 dan 3
2 dan 5
4 dan 5
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Perhatikan gambar!
Isotop dari atom tersebut, terdiri dari . . . .
27 proton, 27 elektron, dan 14 neutron
14 proton, 14 elektron, dan 27 neutron
13 proton, 14 elektron, dan 27 neutron
13 proton, 13 elektron, dan 27 neutron
13 proton, 13 elektron, dan 14 neutron
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pada proses pemisahan minyak bumi menjadi fraksi-fraksi, cara pemisahan yang digunakan adalah . . . .
filtrasi/penyaringan
distilasi/Penyulingan
sublimasi
kromatografi
dekantasi
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sebanyak 31,75 gr logam tembaga (I) direaksikan dengan 8 gr gas oksigen dalam wadah tertutup membentuk tembaga (II) oksida 2Cu(s) + O2 (g) → 2CuS(s), massa zat yang dihasilkan adalah . . . .
75,50 gram
71,50 gram
47,75 gram
39,75 gram
23,87 gram
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pada reaksi a C2H5OH + b O2 → c CO2 + d H2O, nilai koefisien a, b, c dan d berturut-turut adalah . . . .
1, 2, 1, 3
1, 3, 1, 3
1, 3, 2, 3
2, 3, 3, 1
2, 3, 1, 3
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sebuah unsur memiliki konfigurasi elektron 2, 8, 8, 2. Unsur tersebut terletak pada periode . . . dan golongan . . . .
2 dan IVB
2 dan IVA
4 dan IVA
4 dan IIB
4 dan IIA
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Diketahui konfigurasi unsur-unsur berikut :
P : 2, 4
Q : 2, 7
R : 2, 8, 6
S : 2, 8, 1
Unsur yang dapat membentuk ikatan ionik adalah . . . .
P dan Q membentuk PQ
S dan Q membentuk SQ
P dan R membentuk PR
R dan S membentuk SR
R dan S membentuk S2R
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