
SOAL PAS KIMIA XII GANJIL

Quiz
•
Chemistry
•
12th Grade
•
Hard
Ade Rahmadina
Used 1+ times
FREE Resource
25 questions
Show all answers
1.
MULTIPLE SELECT QUESTION
1 min • 1 pt
Diketahui data potensial reduksi logam:
Cu2+/Cu = + 0,34 V Ni2+/Ni= – 0,28 V
Zn2+/Zn= – 0,76 V Ag+/Ag= + 0,80 V
Reaksi yang dapat berlangsung spontan ....
Cu(s) + Zn2+(aq) Zn(s) + Cu2+(aq)
Ni2+(aq) + Zn(s) Ni(s) + Zn2+(aq)
2Ag(s) + Ni2+(aq) 2Ag+(aq) + Ni(s)
Ni2+(aq) + Cu(s) Ni(s) + Cu2+(aq)
Zn2+(aq) + 2Ag(s) 2Ag+(aq) + Zn(s)
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Diketahui data potensial reduksi logam:
Cu2+/Cu = + 0,34 V Ni2+/Ni= – 0,28 V
Zn2+/Zn= – 0,76 V Ag+/Ag= + 0,80 V
Ke dalam larutan CuSO4 dan larutan AgNO3 dimasukkan masing-masing logamnya. Potensial yang terjadi apabila kedua logam dihubungkan adalah ... V.
1,26
1,14
0,56
0,46
0,22
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Suatu sel volta disusun seperti pada bagan berikut: Notasi sel volta yang benar sesuai gambar di atas adalah…
(1): Ag(s)│Ag+(aq)║ Cu2+(aq) │ Cu(s)
(2): Al(s)│Al3+(aq)║Zn2+(aq)│Zn(s)
(3): Al(s) │Al3+(aq)║ Ag+(aq) │ Ag(s)
(4): Zn(s) │Zn2+(aq) ║Ag+(aq) │Ag(s)
(5): Cu(s)│Cu2+(aq)║ Zn2+(aq)│Zn(s)
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Jika larutan KNO3 dielektrolisis dengan menggunakan elektrode grafit maka ....
terbentuk gas hidrogen di anode
terbentuk gas oksigen di katode
larutan bersifat asam di anode
logam kalium mengendap di katode
massa di anode bertambah
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Tembaga diperoleh dari alam melalui pengolahan bijihnya dengan tahapan: Cu2S + O2 → Cu2S + O2 → 2Cu + SO2
2Cu2S + 3O2 → 2Cu2O + 2SO2
Cu2S + 2Cu2O → 6Cu + SO2
Tembaga yang diperoleh kemudian ditempatkan sebagai anode dan dielektrolisis dalam 100 mL larutan CuSO4 dengan arus 20 A selama 965 detik dengan katode tembaga murni. Jika Ar Cu = 63,5 maka massa di katode diperkirakan akan bertambah sebanyak ....
12,7 g
6,35 g
1,27 g
0,34 g
0,13 g
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Gas mulia yang dapat bersenyawa umumnya memiliki sifat ....
titik didih rendah
oksidator rendah
energi ionisasi rendah
afinitas elektron rendah
keelektronegatifan rendah
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Beberapa sifat unsur sebagai berikut: (1) Mempunyai konfigurasi np6 (2) Titik didihnya tinggi (3) Kereaktifan rendah (4) Berupa gas diatomik (5) Mudah larut dalam air Berdasarkan sifat-sifat tersebut yang sesuai dengan sifat gas mulia terdapat pada nomor ….
(1) dan (2)
(1) dan (3)
(2) dan (5)
(2) dan (4)
(3) dan (5)
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