Exploring Electrolysis Concepts

What is the basic principle of electrolysis?

• Electrolysis is a process that requires heat to induce a chemical change.

• The basic principle of electrolysis is the use of electric current to induce a chemical change.

• The principle of electrolysis is based on the reaction of gases without any electric current.

• Electrolysis involves the use of magnetic fields to separate elements.

Name the main components of an electrolytic cell.

• Battery, Switch, Fuse

• Anode, Cathode, Electrolyte

• Positive Terminal, Negative Terminal, Conductor

• Resistor, Capacitor, Inductor

How does the concentration of an electrolyte affect the rate of electrolysis?

• Lower electrolyte concentration decreases the rate of electrolysis.

• Higher electrolyte concentration decreases the rate of electrolysis.

• Electrolyte concentration has no effect on the rate of electrolysis.

• Higher electrolyte concentration increases the rate of electrolysis.

What role does the anode play in an electrolytic cell?

• The anode is where oxidation occurs and attracts anions.

• The anode is the part of the cell that produces hydrogen gas.

• The anode serves as the main source of electrons in the circuit.

• The anode is where reduction occurs and repels anions.

List one application of electrolysis in industry.

• Extraction of aluminum from bauxite

• Production of hydrogen gas

• Electroplating of metals

• Water purification processes

What is the process of electrolysis of water?

• Electrolysis of water is the decomposition of water into hydrogen and oxygen gases using electric current.

• Electrolysis of water is a chemical reaction that requires a catalyst.

• Electrolysis of water produces only hydrogen gas.

• Electrolysis of water involves heating water to create steam.

What are the products formed during the electrolysis of salt solutions?

• Carbon dioxide and hydrogen peroxide

• Hydrogen gas and chlorine gas

• Oxygen gas and sodium hydroxide

• Sodium chloride and water

Explain how temperature influences the electrolysis process.

• Temperature only affects the color of the electrolyte solution.

• Temperature has no effect on electrolysis efficiency.

• Temperature increases the efficiency of electrolysis by enhancing ion mobility and conductivity.

• Higher temperatures decrease ion mobility during electrolysis.

What is the significance of the cathode in electrolysis?

• The cathode is the source of electric current in electrolysis.

• The cathode is significant because it is the site of reduction where cations gain electrons.

• The cathode is significant for its role in oxidation reactions.

• The cathode is where anions lose electrons.

Describe the electrolysis of copper(II) sulfate solution.

• Electrolysis of copper(II) sulfate produces hydrogen gas at the cathode and copper ions at the anode.

• The process generates only copper sulfate without any gas production.

• Copper ions are oxidized at the cathode while sulfate ions are reduced at the anode during electrolysis.

• Electrolysis of copper(II) sulfate solution involves the reduction of copper ions at the cathode and the oxidation of sulfate ions at the anode, producing solid copper and oxygen gas.