
Reduksi oksidasi
Authored by Maurin Harti
Chemistry
1st - 2nd Grade
Used 23+ times

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8 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Bilangan oksidasi P pada P2O5, PO33- dan Ca3(PO4)2 berturut-turut adalah ....
+3, +5 dan +5
-5, +3 dan +3
-3, +5 dan +5
+5, +3, dan +5
+5, +3 dan +6
2.
MULTIPLE SELECT QUESTION
2 mins • 1 pt
Bilangan oksidasi H yang sama dengan +1 terdapat pada senyawa ....
NH3
CaH2
AlH3
NaH
MgH2
3.
MULTIPLE SELECT QUESTION
3 mins • 1 pt
Perhatikan reaksi berikut :
3Br2 + 6NaOH → 5NaBr + NaBrO3 + H2O
Bilangan oksidasi brom berubah dari ....
0 menjadi -5 dan +5
-1 menjadi -5 dan +5
0 menjadi -1 dan +5
-1 menjadi -1 dan +3
0 menjadi -1 dan +3
4.
MULTIPLE SELECT QUESTION
3 mins • 1 pt
Perhatikan reaksi berikut :
MnO2 + 2H2SO4 + 2NaI→ MnSO4 + Na2SO4 +2H2O + I2
Zat yang berperan sebagai oksidator adalah ....
NaI
H2SO4
MnO2
MnSO4
I2
5.
MULTIPLE SELECT QUESTION
5 mins • 1 pt
Diantara reaksi berikut yang merupakan reaksi redoks adalah....
SO3 + H2O → H2SO4
Mg(OH)2 + 2HCl → MgCl2 + 2H2O
2CrO22- + 2H+ → Cr2O72- + H2O
K2CO3 + MgBr2 → 2KBr + MgCO3
SnCl2 + I2 + 2HCl → SnCl4 + 2HI
6.
MULTIPLE SELECT QUESTION
5 mins • 1 pt
Diantara reaksi berikut yang tergolong autoredoks adalah ....
2CO + O2 → 2CO2
ZnO + H2 → Zn + H2O
MgCO3 + 2HCl → MgCl2 + CO2 + H2O
Cu + 2H2SO4 → CuSO4 + 2H2O + SO3
3K2MnO4 + 4HCl → MnO2 + 2KMnO4 + 4KCl + 2H2O
7.
MULTIPLE SELECT QUESTION
2 mins • 1 pt
Unsur Mn yang mempunyai bilangan oksidasi sama dengan bilangan oksidasi Cr dalam K2Cr2O7 adalah....
KMnO4
K2MnO4
MnSO4
MnO
MnO2
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