
Quiz Elektrokimia
Quiz
•
Chemistry
•
10th Grade
•
Hard
Wi wid
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52 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Bahan yang digunakan sebagai elektrode pada sel aki (accu) adalah ...
Pt dan C
Zn dan C
Cu dan PbO2
Pb dan PbO2
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Logam yang tidak diperoleh dengan proses elektrolisis adalah ...
Natrium
Aluminium
Magnesium
Kalsium
Merkuri
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pada elektrolisis larutan CuSO4 dengan elektrode Pt, dialirkan arus listrik 2 Ampere selama 965 detik (Ar Cu=63,5), maka banyaknya logam tembaga yang dihasilkan ... mg
317,5
635,0
952,5
1.270
1.905
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Berapakah massa logam perak yang diendapkan jika arus listrik sebesar 5 Ampere dialirkan ke dalam larutan AgNO3 selama 2 jam? (Ar Ag = 108)
24,90 gram
29,40 gram
40,29 gram
42,09 gram
49,20 gram
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Logam yang dapat mencegah korosi pada bumper mobil adalah ...
Kromium
Timbal
Timah
Magnesium
Nikel
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pada elektrolisis leburan Al2O3 (Ar O = 16, Al = 27) diperoleh 0,225 gram Al. Jumlah arus listrik yang diperlukan adalah ...
221,9 Coulomb
804,0 Coulomb
1.025,9 Coulomb
2.412,5 Coulomb
8.685,0 Coulomb
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Oksidasi 1 mol ion sianida (CN-) menjadi ion sianat (CNO-) memerlukan muatan listrik sebanyak ..... Faraday
1
2
3
4
5
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