Reaksi Redoks dan Elektrokimia
Quiz
•
Chemistry
•
12th Grade
•
Medium
Budi Swityastuti
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20 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Bahan yang digunakan sebagai elektrode pada sel aki (accu) adalah …
Pt dan C
Zn dan C
Pb dan PbO2
Zn dan Cu
Cu dan PbO2
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
. Logam yang tidak diperoleh dengan proses elektrolisis adalah …
Natrium
Aluminium
Magnesium
Kalsium
Merkuri
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Logam yang dapat mencegah korosi pada bumper mobil adalah …
Kromium
Timbal
Timah
Magnesium
Nikel
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Berikut ini adalah faktor-faktor yang dapat mempercepat terjadinya korosi, kecuali …
Banyaknya uap air disekitar logam
Bersinggungan langsung dengan udara
Banyaknya oksigen disekitar logam
Banyak terdapat uap asam disekitar logam
Disekitar logam tidak ada oksigen
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Selama aki itu bekerja, akan terjadi perubahan-perubahan …
. Pb dan PbO2 berubah menjadi Pb3O4
Pb dan PbO2 berubah menjadi PbSO4
Pb menjadi PbO2 dan PbO2 menjadi PbSO4
Pb menjadi PbO dan PbO2 menjadi Pb3O4
Pb menjadi PbSO4 dan PbO2 tetap
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Logam yang dapat mencegah korosi pipa besi yang ditanam didalam tanah adalah …
Tembaga
Timbal
Timah
Magnesium
Nikel
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Data potensial reduksi:
Pada suatu sel volta berlangsung reaksi
2 Cr + 3 NiCl2 → 3 Ni + 2 CrCl3
Potensial sel (EO) reaksi tersebut adalah…Volt
+0,96
+0,67
+0,46
-0,46
-0,96
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