Quiz on Carbonyl Compounds: Aldehydes and Ketones

What is the carbonyl group in aldehydes and ketones?

• A nitrogen atom double bonded to a carbon atom

• An oxygen atom double bonded to a carbon atom

• A hydrogen atom double bonded to a carbon atom

• A sulfur atom double bonded to a carbon atom

Where is the carbonyl group located in aldehydes?

• Randomly in the carbon chain

• At the beginning of the carbon chain

• In the middle of the carbon chain

• At the end of the carbon chain

What is the suffix used for naming aldehydes?

• al

• ene

• one

• yne

In ketones, the carbonyl group is bonded to:

• Two hydrogen atoms

• One hydrogen atom and one carbon atom

• Two other carbon atoms

• One oxygen atom and one carbon atom

What is the correct name for a ketone with a six-carbon chain and the carbonyl group on the second carbon?

• Hexane-4-one

• Hexane-3-one

• Hexane-5-one

• Hexane-2-one

What is the structural formula representation for the aldehyde group?

• CHO

• NH2

• CO

• OH

Which of the following is true about the carbonyl group in ketones?

• It is always at the end of the carbon chain

• It is always bonded to a hydrogen atom

• It is always bonded to an oxygen atom

• It is never bonded to a hydrogen atom

What type of bond is formed from the sideways overlap of a 2p orbital in the carbonyl group?

• Pi bond

• Sigma bond

• Covalent bond

• Ionic bond

Why is the double bond in the carbonyl group polar?

• Because the oxygen atom is more electronegative than the carbon atom

• Because the carbon atom is more electronegative than the oxygen atom

• Because the bond is ionic

• Because both atoms have the same electronegativity

What type of reaction can carbonyl compounds undergo due to their polar double bond?

• Elimination

• Free radical substitution

• Electrophilic substitution

• Nucleophilic addition