Quiz on Chemistry of Carbonyl Compounds and Amines

What is the functional group present in aldehydes and ketones?

• Hydroxyl group (–OH)

• Carboxyl group (–COOH)

• Amino group (–NH₂)

• Carbonyl group (C=O)

Which oxidizing agent can oxidize primary alcohols to aldehydes?

• LiAlH₄

• KMnO₄

• NaOH

• H₂SO₄

What is the advantage of using pyridinium chlorochromate (PCC) for oxidation?

• It oxidizes all types of alcohols

• It leaves carbon-carbon multiple bonds unoxidized

• It is less expensive than other oxidizing agents

• It produces more aldehydes than ketones

How are aldehydes prepared by dehydrogenation?

• By heating with sodium

• By mixing with water

• By using strong acids

• By passing vapors over heated copper

What type of alcohol is oxidized to form ketones?

• Quaternary alcohols

• Secondary alcohols

• Tertiary alcohols

• Primary alcohols

Which of the following is NOT a method for preparing ketones?

• Dehydrogenation of secondary alcohols

• Using PCC

• Oxidation of primary alcohols

• Oxidation of secondary alcohols

What happens to secondary alcohols when treated with acidified KMnO₄?

• They remain unchanged

• They are converted to aldehydes

• They are converted to ketones

• They are converted to ethers

What is the result of dehydrogenating secondary alcohols?

• Formation of esters

• Formation of ketones

• Formation of carboxylic acids

• Formation of aldehydes

Which oxidizing agent is mentioned for the oxidation of both primary and secondary alcohols?

• K₂Cr₂O₇

• HCl

• NaCl

• AgNO₃

What is the general structure of the carbonyl group?

• C–H

• C≡C

• C=O

• C–C