HÓA 10-PHẢN ỨNG OXI HÓA KHỬ 2

Quiz
•
Chemistry
•
10th - 12th Grade
•
Hard
NGUYỄN KIÊN
Used 17+ times
FREE Resource
30 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
KMnO4 + FeSO4 + H2SO4 → Fe2(SO4)3 + K2SO4 + MnSO4 + H2O
Hệ số của chất oxi hóa và chất khử trong phản ứng trên lần lượt là
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
4Na + O2 → Na2O
xảy ra quá trình oxi hoá
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
FeSO4 + KMnO4 + H2SO4 → Fe2(SO4)3 + K2SO4 + MnSO4 + H2O
Thì H2SO4 đóng vai trò :
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
FeCO3 + HNO3 → Fe(NO3)3 + NO + CO2+ H2O là:
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Zn(r) + CuCl2(dd) →ZnCl2(dd) + Cu(r)
Ion Cu2+ trong CuCl2 đã:
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Cl2 (k) + 2KBr (dd) → Br2(l) + 2KCl(dd)
KBr là chất:
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