
Ujian Semester Kimia
Quiz
•
Chemistry
•
3rd Grade
•
Hard
Asnaini Melala
FREE Resource
34 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pernyataan berikut yang tidak benar terkait diagram tersebut adalah …..
Elektode M mengalami oksidasi.
Elektrode hidrogen bertindak sebagai katode.
E0 elektrode hydrogen > E0 elektrode M.
M2+(aq) + 2e- → M(s) E0 = -0,24 V
2H+(aq) + 2e- → H2(g) E0 = 0,24 V
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Berdasarkan gambar rangkaian sel Volta, notasi sel yang paling tepat adalah ……
Zn2+ | Zn || Ag | Ag+
Zn | Zn2+ || Ag+ | Ag
Zn2+ | Ag+ || Ag | Zn
Ag | Ag+ || Zn | Zn
Ag | Ag+ || Zn2+ |Zn
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sel Volta Pada gambar tersebut, mempunyai potensial Sel (E0sel) sebesar ………
-1,56 volt
-0,84 volt
+0,04 volt
+0,48 volt
+1,56 volt
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Perhatikan gambar dibawah, berdasarkan diagram tersebut, di sekitar electrode Cu (Anode) terjadi reaksi ….
2H2O(l) + 2e- → H2(g) + 2OH-(aq)
2H2O(l) → O2(g) + 4H+(aq) + 4e-
SO42(aq) → SO2(g) + O2(g) + 2e-
Cu2+ + (aq) + 2e- → Cu(s)
Cu(s) → Cu2+(aq) + 2e-
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Di antara logam-logam tersebut yang tidak dapat bereaksi dengan asam encer (H+) untuk menghasilkan gas hydrogen adalah …
Cu dan Pb
Pb dan Zn
Cu dan Ag
Pb dan Ag
Ag dan Zn
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Di antara unsur-unsur yang terdapat pada data potensial electrode tersebut, spesi yang mempunyai daya oksidasi paling kuat adalah …
Cu
Cu2+
Cl2
Cl-
Ag+
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Di antara persamaan reaksi berikut, yang berlangsung spontan adalah …
Cu2+ + 2Cl- → Cu + Cl2
Cu2+ + 2Ag → Cu +2Ag+
Mn + Ag+ → Mn2+ + Ag
Pb + Mn2+ → Pb2+ + Mn
Mn2+ + 2Cl- → Mn + Cl2
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