Quiz Elektrolisis

Quiz
•
Chemistry
•
12th Grade
•
Hard
Atika Putri
Used 1+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 10 pts
Elektrolisis larutan KCl menggunakan elektrode C akan menghasilkan ....
logam K di katode
gas H2 di katode
gas O2 di anode
gas Cl2 di katode
larutan basa di anode
2.
MULTIPLE CHOICE QUESTION
1 min • 10 pts
Pada elektrolisis larutan tembaga (II) sulfat (CuSO4) dengan elektrode tembaga/Cu, di anode terjadi reaksi…
Cu2+ (aq) + 2e → Cu(s)
Cu(s) → Cu2+ (aq) + 2e
2H2O (l) + 2e → H2 (g) + OH- (aq)
2H2O (l) → 4H+ (aq) + O2 (g) + 4e
SO42- (aq) +H2O (l) → H2SO4 (aq)
3.
MULTIPLE CHOICE QUESTION
1 min • 10 pts
Pada elektrolisis lelehan MgCl2, pada katode dan anode berturut dibebaskan ….
H2 dan Cl2
H2 dan O2
Mg dan Cl2
Mg dan H2
Mg dan O2
4.
MULTIPLE CHOICE QUESTION
1 min • 10 pts
Pada elektrolisis cairan Natrium klorida (NaCl), pada katode dan anode berturut-turut dibebaskan …
H2 dan Cl2
H2 dan O2
Na dan Cl2
Na dan H2
Na dan O2
5.
MULTIPLE CHOICE QUESTION
1 min • 10 pts
Pada elektrolisis larutan MgCl2 dengan elektrode grafit/C di katode akan dihasilkan ....
Gas klorin
Gas Hidrogen
Larutan Mg(OH)2
Logam Mg
Gas oksigen
6.
MULTIPLE CHOICE QUESTION
2 mins • 10 pts
Dalam sejumlah arus listrik yang sama ke dalam larutan NiSO4 dan CuCl2 membentuk endapan nikel sebanyak 5,9 gram jika Ar Ni = 59 dan Cu = 63,5. Maka massa endapan tembaga yang terbentuk adalah …
31,8 g
59,0 g
6,35 g
118 g
127 g
7.
MULTIPLE CHOICE QUESTION
2 mins • 10 pts
Pada proses elektrolisis lelehan NaCl dengan elektroda karbon digunakan Arus sebesar 10 ampere selama 1 menit, massa logam natrium yang diperoleh adalah.... (Ar Na = 23, Cl = 35,5)
0,07 g
0,12 g
0,14 g
0,25 g
0,36 g
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