Elektrokimia
Quiz
•
Chemistry
•
12th Grade
•
Medium
Budi Swityastuti
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35 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Jika elektrode Zn dipasangkan dengan elektrode Cu menjadi sel volta, pernyataan yang tidak tepat adalah ....
anodenya Zn dan katodenya Cu
di anode, Zn akan larut
E0sel yang terjadi adalah +1,10 V
kutub positifnya adalah elektrode Zn
elektron bergerak dari elektrode Zn ke Cu
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Pernyataan yang paling tepat untuk gambar tersebut adalah ....
elektron bergerak dari elektrode tembaga menuju elektrode zink
ion NO3- pada jembatan garam bergerak ke larutan Zn(NO3)2
massa elektrode tembaga bertambah akibat terjadi reduksi ion Cu2+
konsentrasi ion Zn2+ di dalam elektrode berkurang karena mengalami reduksi
arus listrik mengalir dari elektrode zink menuju eletrode tembaga
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Logam yang paling kuat daya reduksinya adalah ....
Mg
Ag
Cu
Mn
Cd
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Sel volta yang tersusun dari pasangan elektrode Zn dan Pb akan mempunyai harga E0sel sebesar ....
0,36 V
0,63 V
2,03 V
2,66 V
3,13 V
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Berdasarkan data potensial tersebut, jika dipasangkan untuk membentuk sel volta, elektrode yang paling mungkin bertindak sebagai katode dan anode berturut-turut adalah ....
Cd dan Cu
Ag dan Pb
Co dan Ag
Cd dan Co
Sn dan Pb
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Pasangan logam yang dapat melindungi besi dari korosi dengan cara proteksi katodik adalah ....
Mg dan Ag
Mg dan Zn
Mg dan Cu
Cu dan Zn
Cu dan Ag
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Jumlah muatan listrik yang diperlukan untuk mereduksi 60 gram ion kalsium menjadi logam kalsium adalah .... (Ar Ca = 40)
1,0 F
1,5 F
2,0 F
2,5 F
3,0 F
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