Oxides and Their Properties in Chemistry

The video explores whether lithium oxide (Li2O) is acidic, basic, or neutral. It explains that Li2O is a metal oxide, typically basic, especially for group 1 and 2 elements. When Li2O is added to water, it forms lithium hydroxide, a strong base. When mixed with hydrochloric acid, it neutralizes the acid, forming lithium chloride and water, confirming its basic nature. The video also discusses trends in oxides across the periodic table, noting that metal oxides are generally basic, while non-metal oxides are acidic.

What type of compound is Li2O expected to be?

• Covalent compound

• Ionic compound

• Metallic compound

• Amphoteric compound

What is formed when lithium oxide reacts with water?

• Lithium carbonate

• Lithium hydroxide

• Lithium sulfate

• Lithium chloride

What is the nature of lithium hydroxide formed from lithium oxide and water?

• Strong base

• Weak base

• Weak acid

• Strong acid

What is the result of the reaction between lithium oxide and hydrochloric acid?

• Lithium phosphate and water

• Lithium nitrate and water

• Lithium chloride and water

• Lithium sulfate and water

In the reaction with hydrochloric acid, what role does lithium oxide play?

• Catalyst

• Acid

• Base

• Neutral compound

Which of the following is a characteristic of metal oxides from Group 1 and 2?

• They are acidic

• They are neutral

• They are strongly basic

• They are amphoteric

What trend is observed for oxides across period three of the periodic table?

• All oxides are acidic

• All oxides are neutral

• All oxides are basic

• Metal oxides are basic, non-metal oxides are acidic

Where is lithium oxide positioned in terms of its basicity on the periodic table?

• On the neutral side

• In the middle

• On the basic side

• On the acidic side

Which oxide can act as both an acid and a base depending on the reaction?

• Lithium oxide

• Sodium oxide

• Aluminum oxide

• Magnesium oxide

What is the general nature of non-metal oxides?

• Amphoteric

• Acidic

• Neutral

• Basic