WorksheetsElectrolysis Quiz
Total questions: 14
Worksheet time: 7mins
What is the process of electrolysis primarily used for?
Creating electrical energy
Heating substances
Breaking down ionic compounds
Mixing solutions
What is an electrolyte?
A charged particle
An ionic compound that conducts electricity
A conductor of electricity
A type of electrode
What occurs at the anode during electrolysis?
Neutralization
Reduction
Oxidation
Ionization
What is the charge of cations?
Neutral
Variable
Negative
Positive
According to Faraday's First Law, what is the mass of a substance liberated at an electrode proportional to?
The temperature of the electrolyte
The quantity of electricity passed
The type of electrode used
The volume of the electrolyte
What is the unit of electric charge?
Volts
Watts
Amperes
Coulombs
What does the formula Q = I × t represent?
Total mass deposited
Total electric charge passed
Total current used
Total time taken
What is the Faraday constant?
96500 C/mol
1000 C/mol
96485 C/mol
50000 C/mol
How do you calculate the number of moles of electrons?
n_e = Q × F
n_e = I / t
n_e = I × t
n_e = Q / F
What is the molar mass of copper (Cu)?
63.5 g/mol
58.5 g/mol
65.0 g/mol
60.0 g/mol
What is the charge of a copper ion (Cu²⁺)?
Neutral
Positive
Negative
Variable
What is the first step in solving an electrolysis calculation?
Calculate total charge
Calculate moles of electrons
Convert time to seconds if needed
Calculate the mass deposited
What does the variable 'z' represent in the formula for calculating moles of substance?
Current
Total charge
Molar mass
Number of electrons required to discharge one ion
What is the final mass of copper deposited when 3 A current is passed for 30 minutes?
3.000 g
1.000 g
2.500 g
1.776 g
