Quiz Reaksi Redoks dan ELktrokimia
Quiz
•
Chemistry
•
KG - 12th Grade
•
Practice Problem
•
Hard
Benyamin Rumimbo
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10 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 5 pts
4, 1, 1
4, 1, 2
4, 1, 3
4, 1, 4
4, 1, 5
2.
MULTIPLE CHOICE QUESTION
2 mins • 5 pts
Diantara reaksi-reaksi dibawah ini, yang merupakan reaksi redoks adalah ....
3.
MULTIPLE CHOICE QUESTION
2 mins • 5 pts
Perhatikan gambar berikut! Diketahui harga potensial reduksi berikut:
Ag+ + e Ag E0 = +0,80 Volt
Zn2+ + 2e Zn E0 = - 0,76 Volt
Berdasarkan gambar rangkaian sel Volta, diagram sel yang paling tepat adalah . . . .
Zn2+|Zn||Ag|Ag+
Zn|Zn2+||Ag+|Ag
Zn2+|Ag+||Ag|Zn
Ag|Ag+||Zn|Zn2+
Ag|Ag+||Zn2+|Zn
4.
MULTIPLE CHOICE QUESTION
2 mins • 5 pts
Dari data potensial reduksi berikut :
½ F2(g) + e --> F- (aq) E0 = +2,87 V
½ Cl2(g) + e --> Cl- (aq) E0 = +1,36 V
½ Br2(l) + e --> Br- (aq) E0 =+1,09 V
½ I2(s) + e --> I- (aq) E0 =+0,54 V
Fe3+(aq) + e --> Fe2+(aq) E0 = +0,77 V
Reaksi yang berlangsung spontan adalah . . . .
5.
MULTIPLE CHOICE QUESTION
2 mins • 5 pts
ln|ln3+||3Ag+|3Ag
Mg|Mg2+||Mn2+|Mn
Mn|Mn2+||2Ag+|Ag
2ln|2ln3+||3Mn2+|3Mn
3Mn|3Mn2+||2ln3+|2ln
6.
MULTIPLE CHOICE QUESTION
2 mins • 5 pts
Perhatikan reaksi elektrolisis berikut ini!
1) Elektrolisis larutan NaCl dengan elektroda C
2) Elektrolisis larutan K2SO4 dengan elektroda C
3) Elektrolisis leburan CaCl2 dengan elektroda Pt
4) Elektrolisis leburan CuCl2 dengan elektroda C
Reaksi yang sama terjadi di katoda terdapat pada reaksi nomor ….
1) dan 2)
1) dan 3)
1) dan 4)
2) dan 3)
3) dan 4)
7.
MULTIPLE CHOICE QUESTION
2 mins • 5 pts
Pada penyepuhan logam besi dengan perak dilakukan elektrolisis selama 2 jam dengan arus 10 A. Jika larutan yang digunakan AgNO3 (Ar Ag = 108) maka massa perak yang mengendap adalah ….
(2 x 96.500 x 10 x 60) /108
(2 x 10 x 108 x 60) / 96.500
(2 x 96.500 x 108) /10
(2 x 108 x 10 x 60 x 60) / 96.500
(2 x 96.500 x 108) /60 x 60 x 10
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