
Takrifan Redoks(2)
Authored by CHUINH Moe
Chemistry
5th Grade
Used 2+ times

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15 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Mg + H2SO4 → MgSO4 + H2
Berdasarkan persamaan di atas, nyatakan perubahan nombor pengoksidaan bagi Magnesium.
0 kepada +2
0 kepada 2
0 kepada +1
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Berdasarkan persamaan kimia berikut, yang manakah bukan merupakan tindak balas redoks.
Mg + H2SO4 → MgSO4 + H2
AgNO3 + NaCl → AgCl + NaNO3
2Na + 2H2O → 2NaOH + H2
Zn + CuSO4 → ZnSO4 + Cu
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Apabila Nombor Pengoksidaan sesuatu unsur bertambah, unsur tersebut mengalami pengoksidaan/ dioksidakan
Benar
Salah
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Yang manakah antara berikut berlaku semasa pengoksidaan?
Kehilangan atom oksigen
Penerimaan atom hidrogen
Penerimaan elektron
Nombor pengoksidaan bertambah
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Yang manakah adalah tindak balas redoks?
KOH + HCl --> KCl + H2O
Mg + Pb(NO3)2 --> Mg(NO)3)2 + Pb
Na2CO3 + Ca(NO3)2 --> CaCO3 + 2NaNO3
ZnCO3 + 2HNO3 --> Zn(NO3)2 + H2O + CO2
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Apakah nombor pengoksidaan Br dalam BrO4-?
+4
+5
+7
+8
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Apakah nombor pengoksidaan Y dalam ion Y2O82-?
-8
-7
+7
+8
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