Sel Elektrolisis
Quiz
•
Chemistry
•
1st - 10th Grade
•
Practice Problem
•
Hard
shokhifatul ilmiah
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sel elektrolisis merupakan reaksi kimia yang terjadi ketika aliran listrik di alirkan melalui elektrolit. Pernyataan yang benar tentang sel elektrolit adalah...
Anoda (-), Katoda (+), elektron mengalir dari anoda
Anoda (+), Katoda (-), elektron masuk melalui katoda
Reaksi redoks yang selalu spontan
Anoda reaksi reduksi dan katoda reaksi oksidasi
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pada elektrolisis cairan natrium klorida, pada katode dan anode berturut-turut dibebaskan …
H2 dan Cl2
H2 dan O2
Na dan Cl2
Na dan H2
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pada elektrolisis lelehan MgCl2 dengan elektrode grafit di katode akan dihasilkan...
Gas Klorin
Gas Hidrogen
Gas Oksigen
Logam Mg
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pada elektrolisis larutan AgNO3 dengan elektrode Ag, reaksi yang terjadi pada anoda adalah ....
2H2O --> O2 + 4H+ + 4e
Ag+ + e --> Ag
Ag --> Ag+ + e
2H2O + 2e --> H2 + 2OH-
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jika larutan Na2SO4 dielektrolisis dengan elektroda karbon, reaksi yang terjadi pada anode adalah…
Na → Na+ + e–
SO42- → SO2 + O2
2H2O → 4H+ + O2+ 4e–
2H2O + 2e– → H2 + 2OH–
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sendok logam yang terbuat dari zink akan disepuh dengan logam tembaga. Reaksi yang terjadi di katoda adalah...(UN 2018)
Cu2+ + 2e --> Cu
Zn --> Zn2+ + 2e
Zn2+ + 2e --> Zn
Cu --> Cu2+ + 2e
7.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Bila ke dalam larutan NiSO4 dialirkan listrik sebesar 0,1 F dan Ar Ni = 59, maka di katode akan diperoleh logam Ni berapa gram?
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