ELEKTROLISIS & KOROSI
Quiz
•
Chemistry
•
University
•
Practice Problem
•
Hard
Standards-aligned
Evi Lutfia
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21 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Bila larutan CuSO4 dielektrolisis menggunakan elektroda Fe maka yang terdapat pada reaksi di anoda adalah...
Oksidasi Fe
Oksidasi H2O
reduksi Fe
Reduksi H2O
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mengapa pada elektrolisis larutan NaCl tidak dihasilkan endapan logam Na seperti pada elektrolisis lelehan NaCl?
Karena pada larutan NaCl, kandungan logam Na tidak sebanyak yang terdapat pada lelehan
Karena lelehan NaCl tidak mengandung air
Karena pada elektrolisis larutan NaCl, Na tidak tereduksi
Karena pada elektrolisis larutan NaCl, logam Na teroksidasi
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Pada reaksi elektrolisis larutan NiSO4 dengan elektroda Ag. Reaksi yang terjadi pada anoda adalah ….
Ag(aq) Ag+(aq) + e
Ni2+(aq) + 2e Ni(s)
2 H2O(l) + 2e H2(g) + 2 OH–(aq)
2 H2O(l) 4 H+(aq) + O2(g) + 4e
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Berikut yang bukan merupakan contoh penerapan elektrolisis adalah ...
Pelapisan logam
Pemurnian logam
Pengisian ulang aki
Produksi zat
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dibawah ini yang merupakan elektroda inert adalah...
Grafit, platina, seng
Grafit, platina, emas
karbon, perak, emas
tembaga, karbon, platina
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Apabila pada anoda kita gunakan elektroda non inert yakni tembaga, maka reaksi yang terjadi adalah...
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Apa yang akan terjadi bila dalam reaksi sel elektrolisis, arus listrik diputus?
Reaksi kimia akan terbentuk.
Reaksi kimia akan terbentuk dengan waktu yang sangat lama.
Reaksi kimia tidak akan terbentuk.
Semua jawaban salah.
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