Reactions Of Copper

The video tutorial explores the reactions of copper with air, water, halogens, acids, and in displacement reactions. It explains the formation of verdigris on copper surfaces due to oxidation, the reaction of copper with oxygen to form copper II oxide, and its non-reactivity with water. The video also covers copper's reactions with halogens to form copper halides and its interactions with acids like sulfuric and nitric acid, highlighting the production of nitrogen oxides and sulfur dioxide. Finally, it discusses copper's low reactivity and its role in displacement reactions.

What is the green layer that forms on copper over time when exposed to air?

• Copper nitrate

• Copper sulfate

• Verdigris

• Copper chloride

Why is copper often used for water pipes?

• It reacts with water to form a protective layer

• It does not react with water

• It is cheaper than other metals

• It is highly reactive with water

What gas is produced when copper reacts with concentrated nitric acid?

• Oxygen

• Nitrogen dioxide

• Hydrogen

• Sulfur dioxide

Which of the following metals can displace copper from a copper sulfate solution?

• Gold

• Lead

• Silver

• Magnesium

What is the main reason copper is obtained through displacement reactions?

• Its cost-effectiveness

• Its low reactivity

• Its high reactivity

• Its abundance