Esters Quiz

What is an ester a derivative of?

• Alcohol

• Carboxylic acid

• Ketone

• Aldehyde

What part of the carboxyl group is replaced to form an ester?

• The –COOH portion

• The –OH portion

• The –CHO portion

• The –CO portion

What is the ester functional group represented as in linear form?

• –COOH

• –COOR

• –CHO

• –COH

What is the key difference between a carboxylic acid and an ester according to the image?

• An ester has an additional oxygen atom.

• A carboxylic acid contains a double-bonded oxygen atom.

• An ester has an –OR group instead of an –OH group.

• A carboxylic acid has an –OR group instead of an –OH group.

What is produced through esterification?

• An ester and water

• A carboxylic acid and water

• An alcohol and water

• A phenol and water

What type of reaction is esterification?

• Addition reaction

• Substitution reaction

• Condensation reaction

• Elimination reaction

What are the reactants in the esterification reaction shown in the image?

• Acetic acid and ethyl alcohol

• Acetic acid and methyl alcohol

• Formic acid and methyl alcohol

• Formic acid and ethyl alcohol

What is a lactone?

• A type of amino acid

• A cyclic ester

• A linear hydrocarbon

• A branched polymer

What type of reaction do hydroxy acids undergo to form cyclic esters?

• Intermolecular esterification

• Intramolecular esterification

• Substitution reaction

• Addition reaction

How is the ring size of a lactone indicated?

• Using a Roman numeral

• Using an Arabic number

• Using a Greek letter

• Using an English alphabet