
Pas kimia xii
Quiz
•
Chemistry
•
9th - 12th Grade
•
Hard
Arina Ulfah
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40 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Dari beberapa larutan berikut
I. Sebanyak 1 liter larutan C6H12O6 4 M
II. Sebanyak 1 liter larutan CO(NH2)2 3 M
III. Sebanyak 1 liter larutan HNO3 3 M
IV. Sebanyak 1 liter larutan H2SO4 3 M
Urutan larutan yang memiliki sifat koligatif terkecil sampai pada yang terbesar adalah ...
II. I, III, IV
I, II, III, IV
IV, III, II, I
IV, III, I, II
I, II, IV, III
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Sebanyak 20 gram zat nonelektrolit dilarutkan dalam 250 gram air (kf = 1,86) membeku pada -2,48 oC.
Massa molekul relatif (Mr) zat nonelektrolit tersebut adalah ...
60
90
120
180
342
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Bilangan oksidasi Br pada asam perbromit (HBrO4) adalah ...
+ 7
- 3
- 1
+ 1
+ 5
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Pada reaksi berikut
2Al(s) + Fe2O3 (s) → Al2O3(s) + 2 Fe(s)
Zat yang merupakan oksidator adalah :
Fe2O3 (s)
Al(s)
Al2O3(s)
Fe(s)
O2
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Pada Penyetaraan reaksi redoks berikut
iSn + iiHNO3 → SnO2 + 4 NO2 + iii H2O
Maka urutan koefisien yang sesuai untuk menggantikan i, ii dan iii adalah ...
1,4 dan 2
1, 4 dan 3
2, 3 dan 4
1, 3 dan 4
1,2 dan 4
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Berdasarkan data potensial elektrode stándar berikut
Zn 2+ + 2e → Zn Eo = ─ 0,76 Volt
Fe 2+ + 2e → Fe Eo = ─ 0,44 Volt
Ni 2+ + 2e → Ni Eo = ─ 0,25 Volt
Cu 2+ + 2e → Cu Eo = + 0,34 Volt
Reaksi yang berlangsung spontan adalah pada notasi sel …
Zn │ Zn 2+ ║ Cu 2+│ Cu
Ni │ Ni 2+ ║ Zn 2+│ Zn
Ni │ Ni 2+ ║ Fe 2+│ Fe
Cu │ Cu 2+ ║ Zn 2+│ Zn
Cu │ Cu 2+ ║ Fe 2+│ Fe
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Larutan AgNO3 (Ar Ag = 108) dialiri lListrik sebesar 10 ampere selama 1 jam maka logam perak yang dapat diendapkan adalah ... gram
40
0,04
0,4
4,0
400
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