
Ujian Kimia Lanjut
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Other
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Professional Development
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Practice Problem
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Medium
Zaqiah M
Used 5+ times
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25 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Perhatikan gambar diatas !
Reaksi yang terjadi di katoda ialah
2H20l9) → H2(g) + 2OH- (aq)
K+ (aq) +e → K(s)
2l- (aq) → l2 (s) + 2e
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pada proses elektrolisis larutan CdSO4 dengan elektroda inert, reaksi yan terjadi pada elektroda positif adalah ...
2H2O +2E → 2OH-+ H2
Cd2++2e → Cd
2h2o → 4H+ +O2+4E
Ni → Ni2+ +2e
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pada reaksi elektrolisis larutan NISO4 dengan elektroda Au. Reaksi yang erjadi pada anoda adalah ...
Ni (s) → Ni2+ (aq) +2e
2H2O(i) → 4H+ (aq) + o2 (g) +4e
2H2O(i) + 2e (aq) → H2 (g) +42OH-
Ni 2+ (aq) + 2e → Ni (s)
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pada elektrolisis larutan KI dengan elektrode C, di ruang katode terjadi peristiwa reduksi yang reaksinya dapat ditulis ...
K(s) ... K + (aq) + e
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Reaksi yang terjadi pada katode dari elektrolisis larutan Na2SO4 adalah ...
SO42- (aq) + 2e ... SO4(aq)
2H2O(aq)+2e ... 2OH-(aq) + H2(g)
Na+(aq) + e ... Na(s)
2H+(aq) + 2e ... H2(g)
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pada elektrolisis larutan H2SO4 dengan elektroda Pt, reaksi yang berlangsung di anoda adalah ...
H(g) ... H+ (aq) +e
2H+(aq) + 2e ... H2 (g)
2H2O(l) ... 4H+(aq) + O2(g) +4e-
H2(g) ... 2H-(aq) + 2e-
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pernyataan berikut yang sesuai dengan Sel Volta adalah ...
Katoda pada sel volta bertindak sebagai kutub positif
Anoda pada sel volta bertindak sebagai kutub positif
reakis berjalan tidak spontan
salah satu sel elektrokimia yang mengubah energi listrik menjadi energi kimia
Anoda pada sel volta merupakan tempat terjadinya reaksi reduksi
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