Elektrolisis

Elektrolisis

3rd Grade

5 Qs

quiz-placeholder

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Elektrolisis

Elektrolisis

Assessment

Quiz

Chemistry

3rd Grade

Practice Problem

Hard

Created by

rahmat kurniawan

Used 4+ times

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5 questions

Show all answers

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 → H+ 2OH

2H2O → 4H+ + O2+ 4e

Na →Na+ + e

2H+ + 2e → H2

SO42- → SO2 + O2

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