ULANGAN HARIAN REDOKS DAN ELEKTROKIMIA
Quiz
•
Chemistry
•
12th Grade
•
Hard
Evariani, S.Pd, M.Si
Used 16+ times
FREE Resource
10 questions
Show all answers
1.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Gas klorin (Cl2) yang ditambahkan ke dalam pengolahan air minum dan kolam renang bertujuan untuk membunuh bakteri. Reaksi pembentukan gas klorin adalah sebagai berikut:
2NaCl + 2H2O ® H2 + Cl2 + 2NaOH
Zat yang berperan sebagai oksidator adalah…
2.
MULTIPLE SELECT QUESTION
1 min • 1 pt
Perlindungan korosi yang tepat dilakukan untuk melindungi logam besi adalah…
mengecat
dibuat paduan logam
perlindungan katodik
melumuri dengan oli
dibalut dengan emas
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Yang bukan merupakan reaksi redoks adalah…
(NH4)2Cr2O7 -------> N2 + 4H2O + Cr2O3
CuCO3 + H2SO4 -------> CuSO4 + H2O + CO2
H2S + 2H2O + 3Cl2 --------->SO2 + 6HCl
Mg + CuSO4 ---------> MgSO4 + Cu
3CH3CH(OH)CH3 + 2CrO3 ---------->3CH3COCH3 + 2Cr(OH)3
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Penyataan yang tidak benar untuk reaksi pada sel volta berikut adalah
transfer elektron berlangsung kearah kanan
Cu mengalami reduksi
Zn mengalami oksidasi
Cu sebagai katoda
Zn sebagai oksidator
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
aMno₄⁻ + bSO₃²⁻ →cMn²⁺ + dSO₄²⁻, setelah disetarakan harga a, b, c, dan d berturut-turut ....
2, 5, 6, 2
3, 5, 3, 5
2, 5, 2, 3
5, 3, 3, 5
2, 5, 2, 5
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Potensi standar dari:
Cu⁺ + e →Cu Eᵒ = +0,52 V
Sn²⁺+2e →Sn Eᵒ = -0,14 V
Al³⁺ + 3e →Al Eᵒ = -1,66 V
Ag⁺ + e →Ag Eᵒ = +0,8 V
Reaksi yang berlangsung spontan adalah ...
Ag /Ag⁺//Al³⁺/Al
Cu/Cu⁺//Al³⁺//Al
Ag/Ag⁺// Cu /Cu⁺
Al/Al³⁺//Sn³⁺/Sn
Cu/Cu+//Sn2+/Sn
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Pada elektrolisis leburan BaCl2 dengan elektrode grafit, di katode akan dihasilkan ...
Gas klor
Gas Hidrogen
Larutan Ba(OH)2
logam Ba
gas oksigen
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