PHẢN ỨNG OXI HÓA - KHỬ
Quiz
•
Chemistry
•
10th Grade
•
Hard
Ngô Hoan
Used 53+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Số oxi hóa của nguyên tố nitrogen trong NH3 là:
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Số oxi hóa của nguyên tử C trong CO2, H2CO3, HCOOH, CH4 lần lượt là:
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Chất khử là chất
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Cho phản ứng: 6FeSO4 + K2Cr2O7 + 7H2SO4 → 3Fe2(SO4)3 + Cr2(SO4)3 + K2SO4 + 7H2O. Trong phản ứng trên, chất oxi hóa và chất khử lần lượt là:
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Có phương trình hóa học sau: Fe + CuSO4 → Cu + FeSO4. Phương trình nào dưới đây biểu thị sự oxi hóa cho phản ứng hóa học trên:
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Phản ứng nào sau đây không phải là phản ứng oxi hóa - khử?
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