Acid-Base Character of Period 3 Oxides

The video tutorial discusses the acid-base character of period 3 elements and their oxides. It explains how these elements form oxides when reacting with oxygen and categorizes them into basic, amphoteric, and acidic oxides. Basic oxides react with acids to form salts and are often soluble in water, forming alkaline solutions. Amphoteric oxides, like aluminum oxide, can react with both acids and bases. Acidic oxides, such as silicon, phosphorus, and sulfur oxides, react with bases to form salts and can produce acidic solutions when dissolved in water.

Which of the following elements from Period 3 forms a basic oxide?

• Sulfur

• Chlorine

• Sodium

• Phosphorus

What is a characteristic of basic oxides when dissolved in water?

• They form acidic solutions

• They form alkaline solutions

• They remain neutral

• They form gaseous products

Which oxide is known to be amphoteric?

• Sodium oxide

• Sulfur dioxide

• Aluminium oxide

• Silicon oxide

Amphoteric oxides can react with which of the following?

• Only bases

• Only acids

• Both acids and bases

• Neither acids nor bases

What type of solution do acidic oxides form when dissolved in water?

• Acidic

• Basic

• Amphoteric

• Neutral

Which of the following is an example of an acidic oxide?

• Magnesium oxide

• Sodium oxide

• Phosphorus pentoxide

• Aluminium oxide

What happens when sulfur dioxide reacts with a base?

• It forms an acidic solution

• It forms a salt and water

• It forms a basic solution

• It remains unchanged

Which oxide is insoluble in water but reacts with bases?

• Sulfur dioxide

• Magnesium oxide

• Sodium oxide

• Silicon oxide

What is produced when phosphorus trioxide reacts with sodium hydroxide?

• Salt and water

• No reaction

• Basic solution

• Acidic solution

Which of the following oxides dissolves in water to produce sulfuric acid?

• Sulfur dioxide

• Phosphorus pentoxide

• Silicon oxide

• Aluminium oxide