
SUMATIF ELEKTROLISIS

Quiz
•
Chemistry
•
12th Grade
•
Medium
SUBIYANTO SUBIYANTO
Used 4+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
3 mins • 5 pts
Elektrolisis larutan AgNO3 dan CuSO4 yang disusun secara seri menghasilkan endapan Ag seberat 3,156 gram. massa endapan Cu yang terbentuk sebanyak... (Ar Ag = 108; Cu= 63,5)
0,83 gram
0,90 gram
0,93 gram
0,99 gram
2.
MULTIPLE CHOICE QUESTION
45 sec • 2 pts
Pada reaksi elektrolisis lelehan MgCl2 reaksi yang terjadi pada katoda adalah...
H2O + 2e → 2OH- + H2
H2O → 4H+ + O2 + 4e
Mg2+ + 2e → Mg
Mg → Mg2+ + 2e
2Cl- + 2e → Cl2
3.
MULTIPLE CHOICE QUESTION
1 min • 2 pts
Elektrolisis larutan Fe2SO4 dengan elektroda emas, reaksi yang terjadi pada anoda adalah...
Oksidasi air menjadi oksigen (2H2O -> O2 + 4H+ + 4e-)
4.
MULTIPLE CHOICE QUESTION
1 min • 2 pts
reaksi elektrolisis larutan CuSO4 dengan katoda besi dan anoda perak, reaksi yang terjadi pada anoda adalah...
Fe -> Fe2+ + 2e-
Ag -> Ag+ + e-
Ag+ + e- -> Ag
Cu2+ + 2e- -> Cu
CuSO4 -> Cu + SO4
5.
MULTIPLE CHOICE QUESTION
2 mins • 4 pts
Dua liter larutan NaOH dielektrolisis dengan muatan listrik sebesar 965 Coulomb, bepara pH larutan yang terbentuk?
3 - log 5
9 + log 5
10 + log 5
11+ log 5
12 + log 5
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Massa logam perak yang dapat diendapkan jika arus sebesar 10 ampere dialirka ke dalam larutan AgNO3 selama 1 jam adalah... (Ar Ag = 108)
30 gram
40,3 gram
45,90 gram
0,02 gram
1,5 gram
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
pada anoda reaksi yang terjadi adalah...
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