Electrolysis Part 1

Front

What is electrolysis?

Back

Electrolysis is a chemical process that uses electricity to break down compounds into their individual elements or simpler compounds.

Front

What is the role of the anode in electrolysis?

Back

The anode is the positive electrode where oxidation occurs, and it attracts anions (negative ions).

Front

What is the role of the cathode in electrolysis?

Back

The cathode is the negative electrode where reduction occurs, and it attracts cations (positive ions).

Front

What is a half-equation in electrolysis?

Back

A half-equation shows the reaction occurring at one electrode during electrolysis, indicating the species involved and the electrons transferred.

Front

What is the discharge of hydroxide ions at the anode?

Back

4OH⁻ → 2H₂O + O₂ + 4e⁻.

Front

What gas is produced at the anode during the electrolysis of concentrated NaCl solution?

Back

Chlorine gas (Cl₂) is produced at the anode.

Front

What is the ratio of hydrogen to oxygen produced during the electrolysis of water?

Back

The ratio of hydrogen to oxygen is 2:1.

Front

What happens to positive ions (cations) during electrolysis?

Back

Positive ions move towards the cathode where they gain electrons (reduction) and discharge.

Front

What is produced at the cathode during the electrolysis of copper sulfate solution?

Back

Copper metal is produced at the cathode.

Front

What is the significance of the electrolyte in electrolysis?

Back

The electrolyte is a substance that conducts electricity and allows the movement of ions, facilitating the electrolysis process.