
Persiapan PAS Kimia Azhari
Quiz
•
Chemistry
•
12th Grade
•
Hard
Standards-aligned
Ika Sartika
Used 2+ times
FREE Resource
66 questions
Show all answers
1.
MULTIPLE SELECT QUESTION
3 mins • 1 pt
Sel volta terdiri dari elektrode perak dan tembaga, jika
Ag+ +e → Ag Eo= +0,80 volt
Cu2+ +2e → Cu Eo= +0,34 volt
Pilih lebih dari satu pernyataan benar dari pilihan jawaban berikut ….
Ag sebagai katoda
Cu mengalami reduksi
Potensial selnya = 0,46
Elektroda Ag semakin tipis
Cu larut dalam air
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Jika diketahui :
Zn+2 / Zn Eo = –0, 76 Volt
Cu+2 / Cu Eo = +0,34 Volt
Maka besarnya potensial sel (Eo sel) Volta apabila reaksi berjalan spontan adalah ...
–0,42 Volt
–1,10 Volt
+0,42 Volt
+1,10 Volt
+11,0 Volt
3.
MULTIPLE SELECT QUESTION
2 mins • 1 pt
Diketahui data potensial elektrode standard :
Ag+(aq) + e → Ag(s) E° = +0,80 volt
Cu2+(aq) + 2e → Cu(s) E°=+0,34 volt
Zn2+(aq) + 2e → Zn(s) E° = -0,76 volt
Mg2+(aq) + 2e → Mg(s) E° = -2,37 volt
Pilih lebih dari satu reaksi redoks berikut yang dapat berlangsung tidak spontan !
Ag(s) + Cu2+(aq) → Ag+ (aq) + Cu(s)
Cu2+ (aq) Zn(s) → Cu(s) + Zn2+(aq)
Zn(s) + Ag+ (aq) → Zn2+ (aq) + Ag(s)
Zn(s) + Mg2+ (aq) → Zn2+ (aq) + Mg(s)
Ag+ (aq) + Mg(s) → Ag(s) + Mg2+ (aq)
4.
MULTIPLE SELECT QUESTION
3 mins • 1 pt
Diketahui data potensial reduksi standar :
Zn2+ + 2e → Zn Eo = -0,76 V
Mg2+ + 2e → Mg Eo = -2,38 V
Cu2+ + 2e → Cu Eo = +0,34 V
Notasi sel yang dapat berlangsung spontan adalah....
Mg |Mg2+ ||Zn2+ |Zn
Zn |Zn2+ ||Mg2+ |Mg
Cu |Cu2+ ||Zn2+ |Zn
Zn |Zn2+ || Cu2+ | Cu
Mg |Mg2+ ||Cu2+ |Cu
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Besarnya Eo sel jika sel volta berjalan spontan adalah ....
-1,53 volt
-0,01 volt
+0,01volt
+1,53 Volt
+1,77 volt
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Berikut ini Aplikasi Sel Volta dalam kehidupan masa kini, kecuali...
Baterai HP
Accumulator (Aki)
Baterai Jam
Elektroplating
Baterai Mobil Listrik
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
1. Pada katode terjadi reaksi reduksi
2. Pada anode terjadi reaksi oksidasi
3. Pada sel volta, katode termasuk elektrode negative
4. Logam yang memiliki potensial lebih tinggi berperan sebagai elektrode positif
5. Logam yang memiliki potensial lebih rendah berperan sebagai elektrode negatif
Dari pernyataan di atas yang tidak sesuai dengan kaidah sel volta adalah ...
1
2
3
4
5
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