Carboxylic Acids, Typical Acids and Esters

The video tutorial covers carboxylic acids, their natural occurrence, and examples like methanoic, ethanoic, and ethanedioic acids. It explains the typical reactions of carboxylic acids, including reactions with metals, bases, and carbonates, and the process of esterification. The tutorial also highlights the uses of esters in flavorings and perfumes, and their presence in animal and vegetable fats.

Which carboxylic acid is commonly known as formic acid?

• Propanoic acid

• Methanoic acid

• Ethanoic acid

• Ethanedioic acid

What is the product when ethanoic acid reacts with sodium?

• Sodium acetate and water

• Sodium ethanoate and hydrogen

• Sodium carbonate and carbon dioxide

• Sodium chloride and water

In esterification, what role does concentrated sulfuric acid play?

• It acts as a reactant

• It acts as a solvent

• It acts as a catalyst and removes water

• It acts as a base

Which ester is responsible for the smell of bananas?

• Octyl ethanoate

• Pentyl ethanoate

• Ethyl ethanoate

• 3-methylbutyl ethanoate

What are animal and vegetable fats chemically classified as?

• Carboxylic acids

• Esters of long chain fatty acids and glycerol

• Salts of fatty acids

• Alcohols