
ปฏิกิริยารีดอกซ์
Quiz
•
Chemistry
•
12th Grade
•
Practice Problem
•
Hard
สมพร ดวงสำฤทธิ์
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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
สมการต่อไปนี้สมการใดเป็นปฏิกิริยารีดอกซ์
AlCl3 + 3KOH > 3KCl + Al(OH)3
CrO42- + H3O+ > HCrO4- + H2O
NaH + H2O > NaOH + H2
H2O + 2H+ + 2e- > 2H2O
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
ปฏิกิริยาในข้อใดต่อไปนี้ ที่ไม่ใช่ปฏิกิริยารีดอกซ์
Zn + H2SO4 > ZnSO4 + H2
2K2CrO4 + 2HCl > K2Cr2O7 + 2KCl + H2O
K2Cr2O7 + 4H2SO4 + 3H2S > K2SO4 + Cr2(SO4)3 + 3S +7H2O
PCl5 > PCl3 + Cl2
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
จากปฏิกิริยา Cu(s) + 2Ag+(aq) > Cu2+(aq) + 2Ag(s)
ข้อใดคือปฏิกิริยารีดักชันของปฏิกิริยานี้
Cu(s) > Cu2+(aq) + 2e-
Ag+(aq) + 2e- > Ag(s)
Cu(s) > Ag+(aq) + 2e-
Ag+(aq) + e- > Cu2+(aq)
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Fe(s) + Sn2+(aq) > Fe2+ (aq) + Sn(s) Fe
มีเลขออกซิเดชันเพิ่มขึ้นเท่าใด
1
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3
4
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Fe(s) + Sn2+(aq) > Fe2+ (aq) + Sn(s) Sn มีเลขออกซิเดชันลดลงเป็นเท่าใด
0
1
2
3
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
ข้อใดไม่เป็นปฏิกิริยารีดอกซ์
MgO + 2HCl > MgCl2 + H2O
TeO32- + 4I- + 6H+ > 3H2O + Te + 2I2
C3H8 + 5O2 > 3CO2 + 4H2O
CO + NO2 > CO2 + NO
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
2NO3 + 3H2S > 2NO + 4H2O + 3S N มีการเปลี่ยนแปลงเลขออกซิเดชันอย่างไร
+5 เป็น -2
+5 เป็น -3
+6 เป็น -2
+6 เป็น -3
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