SOAL UJIAN KIMIA KELAS 12 SEM GANJIL
Quiz
•
Chemistry
•
12th Grade
•
Hard
CHRISTOPHEL MAMENGKO, S.PD.
Used 3+ times
FREE Resource
21 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
5 mins • 10 pts
100ml NH3 0,5M (Kb = 10-3 ) dicampur dengan NH4Cl sebanyak 100 mL dengan konsentrasi 0,1M. Tentukan pH dari larutan tersebut !
2.
MULTIPLE CHOICE QUESTION
5 mins • 3 pts
Tentukan biloks dari senyawa Cr dalam senyawa Cr2O3
3.
MULTIPLE CHOICE QUESTION
5 mins • 3 pts
Tentukan biloks dari Mn dalam senyawa MnO4-
4.
MULTIPLE CHOICE QUESTION
5 mins • 4 pts
MnO + PbO2 menghasilkan MnO4- + Pb2+
manakah yang mengalami reduksi
PbO2
MnO4-
Pb2+
5.
MULTIPLE CHOICE QUESTION
5 mins • 4 pts
MnO + PbO2 menghasilkan MnO4- + Pb2+
manakah yang bertindak sebagai reduktor
PbO4
MnO2
MnO4
6.
MULTIPLE CHOICE QUESTION
5 mins • 4 pts
Cr2O72- + C2O42- menghasilkan 2Cr3+ + 2CO2
Tentukan manakah yang bertindak sebagai oksidator
CrO42-
CO2
Cr2O72-
Cr3+
C2O42-
7.
MULTIPLE CHOICE QUESTION
5 mins • 4 pts
Cr2O72- + C2O42- menghasilkan 2Cr3+ + 2CO2
Tentukan manakah yang mengalami reduksi
CO2
Cr3+
C2O42-
Cr2O3
Cr2O72-
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