Latihan PAS KIMIA
Quiz
•
Chemistry
•
12th Grade
•
Easy
Is Daryani
Used 5+ times
FREE Resource
20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Pada suatu reaksi autoredoks:
Br2 + OH- --> BrO3- + Br- + H2O. Jumlah OH- yang diperlukan untuk menghasilkan 0,2 mol Br- adalah 0,12 mol
Benar
Salah
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Peristiwa Pembakaran kembang api merupakan suatu peristiwa reaksi redoks yang persamaan reaksinya sebagai berikut :
KClO3 + S + H+ --> KCl + SO2 + H2O. Dari reaksi tersebut, Zat yang berperan sebagai reduktor adalah S
Benar
Salah
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Perhatikan reaksi yang belum setara berikut : xMnO4- + 6H+ + yH2C2O4 --> x Mn2+ + 8H2O + 10 CO2
Harga x dan y berturut - turut adalah 5 dan 2.
Benar
Salah
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Perhatikan reaksi berikut : Cl2 + SO2 + H2O --> HCl + H2SO4 perubahan bilangan oksidasi sulfur dari SO2 menjadi H2SO4 adalah naik 4
Benar
Salah
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Diberikan data reaksi setengah sel dengan nilai Eo sebagai berikut :
Mg2+/Mg Eo = - 2,37 V ; Fe2+/Fe Eo = - 0,44 V, notasi sel yang berlangsung secara spontan adalah Mg/Mg2+//Fe2+/Fe
Benar
Salah
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Suatu sel Volta ditulis dalam notasi sel berikut :
Cu(s) |Cu2+(aq) || 2Ag+(aq) |2Ag(s)
Persamaan reaksi sel dari notasi sel tersebut adalah 2Ag+ + Cu --> 2Ag +Cu2+
Benar
Salah
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Perhatikan gambar sel volta berikut ini :
Berikut ini adalah data potensial reduksi standar beberapa logam :
Pb2+ + 2e --> Pb Eo = - 0,13 V
Ni2+ + 2e --> Ni Eo = - 0,26 V
Fe2+ + 2e --> Fe Eo = - 0,45 V
Zn2+ + 2e -->Zn Eo = - 0,76 V
Al3+ + 3e --> Al Eo = - 1,66 V
Cu2+ + 2e --> Cu Eo = + 0,34 V
Dari kelima gambar sel volta di atas, reaksi Al3+ + Zn --> Al + Zn2+ berlangsung secara spontan.
Benar
Salah
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