
MRS HOA_HOA HOC 10_GK2
Authored by Mr. OCEAN TEAM 212
English
6th Grade
Used 1+ times

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39 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Số oxi hóa của sulfur (S) trong H2SO3, S, SO3 và S2- lần lượt là:
+6; +8; +6; -2
+4; 0; +6; -2
+4; 0; +6; 0
+1; 0; +2; -1
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Trong phản ứng oxi hóa-khử, chất khử là chất
A. nhận electron
B. nhường electron
C. nhường proton
D. nhận proton
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quá trình oxi hóa (sự oxi hóa) là quá trình
nhận electron.
số oxi hóa không đổi.
số oxi hóa giảm.
nhường electron.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quá trình khử (sự khử) là quá trình
nhận electron
số oxi hóa không đổi
số oxi hóa tăng
nhường electron
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
khử
oxi hóa
tự oxi hóa – khử
nhận proton
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
khử
nhận proton
oxi hóa
tự oxi hóa-khử
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Trong các quá trình sau, quá trình nào không đúng?
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