
Elektrokimia
Authored by Rizky Puspitadewi
Chemistry, Science, Education
12th Grade - University
Used 73+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
dari gambar sel volta tersebut, yang bertindak sebagai katode adalah
Zn
Cu
SO42-
KCl
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Suatu sel volta tersusun dari elektroda berikut:
Cd2+ + 2e --> Cd E0 = -0,43 V
Cr3+ + 3e --> Cr E0 = -0,74 V
Potensial sel yang terjadi sebesar ...
-1,17 V
+0,31 V
-0,31 V
+1,17 V
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dari logam-logam tersebut, yang merupakan reduktor terkuat adalah ...
Zn
Mg
Cu
Fe
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Di antara logam berikut ini yang dapat bereaksi dengan asam klorida encer menghasilkan gas hidrogen adalah ...
emas
besi
raksa
tembaga
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Reaksi berikut yang berlangsung tidak spontan adalah ...
Mn + Cu2+ --> Mn2+ + Cu
Mn2+ + Pb --> Mn + Pb2+
Zn + Cu2+ --> Zn2+ + Cu
Fe2+ + Mg --> Fe + Mg2+
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Larutan MgCl2 dielektrolisis dengan elektroda karbon. Reaksi yang terjadi di anoda adalah ...
Mg2+ + 2e --> Mg
2Cl- --> Cl2 + 2e
2H2O + 2e --> 2OH- + H2
2H2O --> 4H+ + 4e + O2
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pada elektrolisis leburan BaCl2 dengan elektrode grafit, pada katode akan dihasilkan ...
gas klor
gas hidrogen
logam Ba
gas oksigen
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