水溶液の電気分解(電極反応)

Quiz
•
Science
•
10th Grade
•
Medium
Nakamura Ikumi
Used 2+ times
FREE Resource
16 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
ヨウ化カリウムKI水溶液を白金電極で電気分解したとき、陰極で起こる変化はどれか。
K+ + e- → K
2I- → I2 + 2e-
2H2O → O2 + 4H+ +4e-
2H2O + 2e- → H2 + 2OH-
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
ヨウ化カリウムKI水溶液を白金電極で電気分解したとき、陽極で起こる変化はどれか。
K+ + e- → K
2I- → I2 + 2e-
2H2O → O2 + 4H+ +4e-
2H2O + 2e- → H2 + 2OH-
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
塩化ナトリウムNaCl水溶液を炭素電極で電気分解したとき、陰極で起こる変化はどれか。
Na+ + e- → Na
2Cl- → Cl2 + 2e-
2H2O → O2 + 4H+ +4e-
2H2O + 2e- → H2 + 2OH-
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
塩化ナトリウムNaCl水溶液を炭素電極で電気分解したとき、陽極で起こる変化はどれか。
Na+ + e- → Na
2Cl- → Cl2 + 2e-
2H2O → O2 + 4H+ +4e-
2H2O + 2e- → H2 + 2OH-
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
硫酸銅(Ⅱ)CuSO4水溶液を白金電極で電気分解したとき、陰極で起こる変化はどれか。
Cu2+ + 2e- → Cu
SO42- + 4H+ + 2e-→ SO2 +2H2O
2H2O → O2 + 4H+ +4e-
2H2O + 2e- → H2 + 2OH-
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
硫酸銅(Ⅱ)CuSO4水溶液を白金電極で電気分解したとき、陽極で起こる変化はどれか。
Cu2+ + 2e- → Cu
SO42- + 4H+ + 2e-→ SO2 +2H2O
2H2O → O2 + 4H+ +4e-
2H2O + 2e- → H2 + 2OH-
7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
硝酸銀AgNO3水溶液を白金電極で電気分解したとき、陰極で起こる変化はどれか。
Ag+ + e- → Ag
NO3- + 2H+ + e-→ NO2 +H2O
2H2O → O2 + 4H+ +4e-
2H2O + 2e- → H2 + 2OH-
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