ELECTROCHEMISTRY
Authored by HARLINA BM
Chemistry
12th Grade - University
Used 15+ times
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18 questions
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1.
OPEN ENDED QUESTION
1 min • Ungraded
NAME
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2.
OPEN ENDED QUESTION
1 min • Ungraded
MATRIC NUMBER
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3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
What is a redox reaction?
A reaction where both reactants get reduced.
A reaction where both reactants get oxidized.
A reaction that involves a transfer of electrons between reactants.
A reaction that involves the combustion of at least one reactant.
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
What is a galvanic (voltaic) cell?
It is a cell that destroys electrons on one side and creates electrons on the other side.
It is a cell that contains only one metal bar and one aqueous ion solution.
It is a type of battery that generates an electrical current from redox reactions.
It is a type of battery that drives a redox reaction when electricity is applied.
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Which of the following is false regarding galvanic cells?
It converts chemical energy into electrical energy
To set up this cell, a salt bridge is used
The reactions taking place are non-spontaneous
The electrolytes taken in the two beakers are different
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Given their standard reduction potentials, which of the species is going to be oxidized?
Cu2+/Cu = 0.34V
Zn2+/Zn = -0.76V
Cu
ZnSO4
CuSO4
Zn
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In voltaic cells, the salt bridge _______ .
is not necessary in order for the cell to work
allows charge balance to be maintained in the cell
drives free electrons from one half-cell to the other
is tightly plugged with firm agar gel through which ions cannot pass
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