
Elektrolisis
Quiz
•
Chemistry
•
1st Grade
•
Practice Problem
•
Hard
Putri Nuramalia
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11 questions
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1.
MULTIPLE CHOICE QUESTION
5 sec • 1 pt
Contoh elektroda inert adalah
C dan Pt
Fe dan Mn
Cu dan Zn
Cu dan Ni
Fe dan Zn
2.
MULTIPLE CHOICE QUESTION
5 sec • 1 pt
Reaksi reduksi pada sel elektrolisis terjadi di
Elektrolit
Sumber tegangan
Katoda
Anoda
Anion
3.
MULTIPLE CHOICE QUESTION
5 sec • 1 pt
Dalam elektrolisis basa, ion OH- akan teroksidasi menurut persamaan
OH- ---> H2O + O2 + e
2 OH- ------> 2H2O + O2 + 2e
2 OH- -----> 3 H2O + O2 + e
4 OH- ------> 2H2O + O2 + 4e
2 H+ + OH- ----> 3H2O-
4.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Pada sel elektrolisis dapat terjadi reaksi- reaksi di anoda. Pernyataan yang tidak benar tentang reaksi-reaksi di anoda pada sel elektrolisis adalah....
Terjadi reksi reduksi
Terjadi reaksi oksidasi
Ion NO3- dan SO4- tidak teroksidasi
Ion-ion halogen dapat bereaksi membentuk molekul unsurnya
Ion OH- bereaksi menurut persamaan:
4 OH- -----> 2H2O + 4e + O2
5.
MULTIPLE CHOICE QUESTION
5 sec • 1 pt
Istilah yang digunakan untuk elektrolisis pada pemurnian logam (perhiasan) adalah....
Penyepuhan
Pemanasan
Perkaratan
Penggilingan
Penyulingan
6.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Elektrolisis larutan NaCl pada elektroda inert akan menghasilkan
H2, Cl2, Na dan larutan NaOH
H2, Cl2 dan Na
H2 dan Cl2
Cl2, OH dan H2
H2, Cl2 dan larutan NaOH
7.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Proses elektrolisis larutan perak nitrat dengan menggunakan elektroda karbon, persamaan reaksi yang terjadi pada anode adalah....
Ag+ + e -----> Ag
2H2O + 2e ----> 2OH- + H2O
2H2O ----> 4H+ + O2 + 4e
Ag ----> Ag+ + e
2NO3 ------> 2NO2 + O2 + 2e
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