SOAL BIMBINGAN USBN 2020
Quiz
•
Chemistry
•
1st Grade
•
Hard
Akh Faisol
Used 16+ times
FREE Resource
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12 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Perhatikan konfigurasi elektron di bawah ini!
Y : [Ne]3s2 3p5
Dari konfigurasi elektron di atas, dapat disimpulkan bahwa unsur Y berada pada....
periode 3, golongan VIIA
periode 3, golongan VIIB
periode 3, golongan VA
periode 5, golongan IIIA
periode 5, golongan IIIB
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Perhatikan konfigurasi elektron berikut!
P : 1s2 2s2 2p2
Q : 1s2 2s2 2p6 3s2 3p5
Jika P dan Q membentuk senyawa PQ4, bentuk molekulnya adalah....
tetrahedron
segitiga piramida
bengkok
bentuk T
segiempat datar
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Sebanyak 100ml CaCl2 0.6M dicampur dengan 100ml Na2CO3 0.6M. jika Ksp CaCO3 = 2.8 x 10 -9, massa zat yang mengendap adalah.... (Ar. Ca = 40, C = 12, O = 16, Na = 23, Cl = 35.5)
120 gram
100 gram
60 gram
9 gram
6 gram
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Elektrolisis larutan CuSO4 selama 30 menit dengan arus 10A, akan menghasilkan endapan logam Cu di katoda sebanyak.... (Ar Cu = 63,5)
0,181 gram
0,373 gram
1,845 gram
5,922 gram
23,689 gram
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pernyataan yang benar mengenai sifat koligatif larutan elektrolit dan nonelektrolit dengan molalitas yang sama adalah....
titik didih larutan elektrolit lebih rendah dibanding larutan nonelektrolit
titik beku larutan elektrolit lebih rendah dibanding larutan nonelektrolit
titik didih larutan elektrolit sama dengan titik didih larutan nonelektrolit
tekanan uap larutan elektrolit lebih tinggi dibandingkan larutan nonelektrolit
tekanan osmosis larutan elektrolit lebih rendah dari larutan nonelektrolit
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Diketahui data potensial reduksi sebagai berikut:
E0 Ca2+/Ca = - 2.87V
E0 Pb2+/Pb = - 0.13V
E0 Mg2+/Mg = - 2.37V
E0 Au3+/Au = + 1.5 V
Reaksi yang dapat berlangsung adalah....
Mg + Ca2+ → Mg2+ + Ca
Ca + Mg → Ca2+ + Mg2+
Pb + Mg2+ → Pb2+ + Mg
Mg + Pb2+ → Mg2+ + Pb
Pb2+ + Au3+ → Pb + Au
7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Suatu zat X jika direaksikan dengan pereaksi Fehling terbentuk endapan merah bata. Maka zat X tersebut kemungkinan mengandung....
selulosa
sukrosa
amilum
glikogen
fruktosa
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