Reaksi Sel Elektrolisis
Quiz
•
Chemistry
•
11th Grade
•
Practice Problem
•
Medium
+1
Standards-aligned
Pitria Rahmat
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10 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Perhatikan gambar elektrolisis larutan KI dengan elektroda karbon dibawah ini. Zat yang terbentuk pada elektroda A adalah.....
logam K
gas H2
gas O2
gas I2
H2O
Tags
NGSS.HS-PS1-1
NGSS.HS-PS1-2
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Perhatikan gambar elektrolisis larutan NaCl dengan elektroda karbon. Zat yang terbentuk pada elektroda B adalah ....
gas O2
gas Cl2
NaCl
logam Na
gas H2 dan NaOH
Tags
NGSS.HS-PS1-2
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Yang terjadi pada suatu sel elektrolisis adalah ...
Oksidasi pada katode
Reduksi pada anode
Reduksi pada katode
Pergerakan kation ke elektroda positif
Pergerakan anion ke elektroda negatif
Tags
NGSS.HS-PS1-3
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Pada proses elektrolisis larutan CdSO4 dengan elektroda inert, reaksi yang terjadi pada elektroda positif adalah ....
Cd2+ + 2e -----> Cd
2H2O + 2e ------> 2OH- + H2
2H2O ------> 4H+ + O2 + 4e
Ni ------> Ni2+ + 2e
4OH- -----> 2H2O + O2 + 4e
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Pada reaksi elektrolisis larutan NiSO4 dengan elektroda Au. Reaksi yang terjadi pada anoda adalah ….
Ni2+(aq) + 2e -----> Ni(s)
Au(aq) ------> Au2+(aq) + e
Ni(s) -----> Ni2+(aq)+ 2e
2 H2O(l) + 2e ------> H2(g)+ 2 OH–(aq)
2 H2O(l) -------> 4 H+(aq) + O2(g) + 4e
Tags
NGSS.HS-PS2-5
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Pada elektrolisis larutan NaCl elektroda Pt ....
produk reaksi berupa Na, Cl2, dan H2
Na+ akan tereduksi menjadi Na
gas Cl2 akan terbentuk di katoda
reaksi di anoda: 2 H2O (l) + 2e -----> H2 (g) + 2OH-(aq)
tidak ada jawaban yang benar
Tags
NGSS.HS-PS1-2
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Pada elektrolisis larutan magnesium sulfat dengan menggunakan elektroda karbon, hasil di katoda dan di anoda berturut-turut adalah ...
H2 dan Mg
H+ dan H2
H2 dan H+
Mg dan O2
H+ dan Mg
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