
Elektrolisis
Authored by rahmat kurniawan
Chemistry
3rd Grade
Used 4+ times

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5 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 20 pts
1. Pada elektrolisis larutan tembaga (II) sulfat dengan elektrode tembaga, di anode terjadi reaksi…
Cu2+ (aq) + 2e ==> Cu (s)
Cu (s) ==> Cu2+ (aq) + 2e
2H2O + 2e ==> H2 + 2OH
2H2O ==> 4H+ + O2 + 4e
SO42- (aq) + H2O (l) ==> H2SO4
2.
MULTIPLE CHOICE QUESTION
30 sec • 20 pts
Pada elektrolisis cairan MgCl2, pada katode dan anode berturut dibebaskan …
H2 dan Cl2
H2 dan O2
Mg dan Cl2
Mg dan H2
Mg dan O2
3.
MULTIPLE CHOICE QUESTION
30 sec • 20 pts
Pada elektrolisis cairan natrium klorida, pada katode dan anode berturut-turut dibebaskan …
H2 dan Cl2
H2 dan O2
Na dan Cl2
Na dan H2
Na dan O2
4.
MULTIPLE CHOICE QUESTION
30 sec • 20 pts
Pada elektrolisis lelehan MgCl2 dengan elektrode grafik di katode akan dihasilkan?
Gas klorin
Gas Hidrogen
Larutan Mg(OH)2
Logam Mg
Gas oksigen
5.
MULTIPLE CHOICE QUESTION
30 sec • 20 pts
Jika larutan Na2SO4 dielektrolisis dengan elektroda karbon, reaksi yang terjadi pada anode adalah…
2H2O + 2e– → H2 + 2OH–
2H2O → 4H+ + O2+ 4e–
Na →Na+ + e–
2H+ + 2e– → H2
SO42- → SO2 + O2
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