Chems IPA 2
Quiz
•
Chemistry
•
12th Grade
•
Practice Problem
•
Hard
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10 questions
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1.
MULTIPLE CHOICE QUESTION
5 mins • 10 pts
Bilangan oksidasi Cr adalah +6, terdapat dalam senyawa...
K2CrO4
CrO42-
KCrO4
Cr2O7
Cr2O3
2.
MULTIPLE CHOICE QUESTION
5 mins • 10 pts
Berikut ini yang bukan merupakan ciri- ciri oksidator adalah...
letaknya di sebelah kanan SPU
Dalam bentuk molekul atau ion mudah mengikat elektron
memiliki biloks tinggi
cenderung mengalami kenaikan biloks
mampu mengoksidasi zat lain
3.
MULTIPLE CHOICE QUESTION
5 mins • 10 pts
Cu + NO3 - → Cu 2+ + N2O
Setelah reaksi redoks tersebut setara akan dihasilkan sebanyak x molekul air. Tentukan jumlah x !
1
2
3
4
5
4.
MULTIPLE CHOICE QUESTION
5 mins • 10 pts
a MnO4- + b I- → c MnO2 + d I2 (suasana basa )
Nilai a,b,c, dan d berturut- turut adalah...
2,6,4,2
2,6,2,3
1,3,2,1
2,3,2,1
1,2,6,3
5.
MULTIPLE CHOICE QUESTION
5 mins • 10 pts
CrO42- + Fe(OH)2 → Cr2O3 + Fe(OH)3
Zat yang berperan sebagai reduktor adalah...
Cr2O3
CrO42-
Fe(OH)3
Fe(OH)2
H2O
6.
MULTIPLE CHOICE QUESTION
5 mins • 10 pts
Biloks P dalam H2PO4- adalah...
3
4
5
6
7
7.
MULTIPLE CHOICE QUESTION
5 mins • 10 pts
aCu + bHNO3 → c Cu(NO3)2 + dNO3 + eH2O
nilai dari a dan c berturut- turut adalah...
2, 2
2,3
3,2
3,3
3,4
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