Organic Chemistry III: Aldehydes, Ketones, and Carboxylic Acids - SS2 Chemistry Past Questions and Answers - page 1
Which of the following compounds is an aldehyde?
Butanal
Benzaldehyde
Acetophenone
Share this question
How are aldehydes named according to the IUPAC nomenclature system?
By replacing the -e ending of the corresponding alkane with -al
By replacing the -e ending of the corresponding alkane with -one
By replacing the -e ending of the corresponding alkane with -aldehyde
By replacing the -e ending of the corresponding alkene with -al
Share this question
Which of the following functional groups is present in both aldehydes and ketones?
Carbonyl group
Hydroxyl group
Carboxyl group
Ester group
Share this question
Which of the following compounds is a ketone?
Methanal
Ethanol
Acetone
Butanoic acid
Share this question
What is the general formula for aldehydes?
R-OH
R-COOH
R-CHO
R-CO-R
Share this question
Which of the following statements is true about the boiling points of aldehydes and ketones?
Aldehydes have higher boiling points than ketones.
Ketones have higher boiling points than aldehydes.
Aldehydes and ketones have similar boiling points.
Boiling points cannot be determined based on the functional group.
Share this question
Which of the following reactions is characteristic of aldehydes?
Aldol condensation
Cannizzaro reaction
Friedel-Crafts acylation
Claisen condensation
Share this question
Which of the following properties is characteristic of ketones?
Strong reducing agents
Easily oxidised to carboxylic acids
Exhibit keto-enol tautomerism
React with sodium bicarbonate to produce carbon dioxide
Share this question
Which of the following tests is used to distinguish between aldehydes and ketones?
Fehling's test
Tollen's test
Lucas test
Iodoform test
Share this question
Which of the following functional groups is present in aldehydes but not in ketones?
Hydroxyl group
Carboxyl group
Amine group
Alkyl group
Share this question