Electrolysis of Water & Hydrochloric Acid

The video explores the concept of electrolysis, starting with its early discovery and the contributions of Michael Faraday, who named many of the terms used today. It discusses the equipment involved, such as anodes and cathodes, and the role of electrolytes. The video explains why pure water is a poor conductor and how adding sulfuric acid enhances electrolysis. It details the reactions at the electrodes, highlighting the redox process and the formation of gases in a 2:1 ratio. The video also examines how adding hydrochloric acid changes the reaction, producing chlorine instead of oxygen, and emphasizes safety precautions due to chlorine's toxicity.

Who introduced most of the terms used in electrolysis today?

• Isaac Newton

• Michael Faraday

• Nikola Tesla

• Albert Einstein

What happens when sulfuric acid is added to water during electrolysis?

• It decreases the conductivity of water.

• It makes water a perfect insulator.

• It increases the ability of water to undergo electrolysis.

• It changes the products of electrolysis.

What is the ratio of gases produced at the electrodes during electrolysis of water?

• 4:1

• 3:1

• 2:1

• 1:1

What type of reaction occurs at the anode during electrolysis?

• Reduction

• Oxidation

• Neutralization

• Precipitation

What gas is produced at the anode when hydrochloric acid is used instead of sulfuric acid?

• Oxygen

• Nitrogen

• Hydrogen

• Chlorine