SOAL UJIAN KIMIA KELAS 12 SEM GANJIL

SOAL UJIAN KIMIA KELAS 12 SEM GANJIL

12th Grade

21 Qs

quiz-placeholder

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SOAL UJIAN KIMIA KELAS 12 SEM GANJIL

SOAL UJIAN KIMIA KELAS 12 SEM GANJIL

Assessment

Quiz

Chemistry

12th Grade

Hard

Created by

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 !

11.70
9.00
7.40
10.50
12.30

2.

MULTIPLE CHOICE QUESTION

5 mins • 3 pts

Tentukan biloks dari senyawa Cr dalam senyawa Cr2O3

+3
+4
+1
+6
+2

3.

MULTIPLE CHOICE QUESTION

5 mins • 3 pts

Tentukan biloks dari Mn dalam senyawa MnO4-

 

+2
+4
+6
+3
+7

4.

MULTIPLE CHOICE QUESTION

5 mins • 4 pts

MnO + PbO2  menghasilkan    MnO4- + Pb2+

manakah yang mengalami reduksi

PbO2

MnO
PbO

MnO4-

Pb2+

5.

MULTIPLE CHOICE QUESTION

5 mins • 4 pts

MnO + PbO2      menghasilkan    MnO4- + Pb2+

manakah yang bertindak sebagai reduktor

MnO

PbO4

MnO2

PbO

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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