
Electrochemistry Essentials
Quiz
•
Others
•
12th Grade
•
Practice Problem
•
Hard
Teketel Lendebo
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is electrochemistry?
Electrochemistry is the study of the relationship between electricity and chemical reactions.
Electrochemistry is the analysis of light and its interaction with matter.
Electrochemistry focuses on the behavior of gases in chemical reactions.
Electrochemistry is the study of sound waves and their effects on materials.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Define oxidation and reduction in electrochemical terms.
Oxidation is the loss of electrons; reduction is the gain of electrons.
Oxidation and reduction are both processes that involve the transfer of heat.
Oxidation is the loss of neutrons; reduction is the gain of neutrons.
Oxidation is the gain of protons; reduction is the loss of protons.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a galvanic cell and how does it work?
A galvanic cell is a device that only stores energy without any chemical reactions.
A galvanic cell converts electrical energy into chemical energy through non-spontaneous reactions.
A galvanic cell is an electrochemical cell that generates electrical energy from spontaneous chemical reactions.
A galvanic cell is a type of battery that requires an external power source to operate.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Explain the role of the salt bridge in a galvanic cell.
The salt bridge maintains electrical neutrality and allows ion flow between half-cells in a galvanic cell.
The salt bridge acts as a barrier to stop electron movement.
The salt bridge prevents ion flow between half-cells.
The salt bridge generates electricity in the galvanic cell.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the Nernst equation used for?
To measure the concentration of a gas in a solution.
To calculate the temperature of a chemical reaction.
The Nernst equation is used to determine the cell potential of electrochemical cells under non-standard conditions.
To determine the mass of a solid in a reaction.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Describe the difference between anode and cathode in electrochemical cells.
The anode is where reduction occurs and the cathode is where oxidation occurs.
The anode is always positive and the cathode is always negative.
The anode is where oxidation occurs (loses electrons), and the cathode is where reduction occurs (gains electrons).
Both anode and cathode are the same and perform identical functions.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the significance of standard electrode potential?
It determines the temperature of a reaction.
It measures the concentration of reactants in a solution.
It indicates the color change during a reaction.
It helps predict redox reaction feasibility and compare oxidizing/reducing agents.
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