Carboxylic Acids and Derivatives Exam-style Questions | A-Level Chemistry CIE

Question 1

Name the carboxylic acid shown in the diagram below.

(0/1 marks)

Explain, using a labelled diagram, why the carboyxlic acid in part a) is soluble in water.

(0/2 marks)

Write an equation for the reaction between the carboxylic acid in part a) and ethanol in the presence of a concentrated sulfuric acid catalyst.

(0/1 marks)

Write an equation for the reaction between the carboxylic acid in part a) and sodium carbonate.

(0/2 marks)

Write an equation for the reaction between the carboxylic acid in part a) and magnesium.

(0/2 marks)

Question 2

Name the ester shown in the diagram below.

(0/1 marks)

Complete the diagram below to show the organic products of the reactions of the ester in part a).

(0/2 marks)

Name the type of reaction occurring in part b).

(0/1 marks)

Which two products are formed in the acid hydrolysis of phenyl methyl ethanoate?

CH₃COOH

CH₃CH₂COOH

C₆H₅CH₂OH

C₆H₅OH

(0/2 marks)

Question 3

This question is about carboxylic acids and esters.

Complete the flowchart below to show the organic products formed when benzoic acid undergoes the following reactions.

(0/3 marks)

Name the ester with the structural formula (CH₃)₃CCOOCH₃.

(0/1 marks)

Write an equation for the alkaline hydrolysis of the ester in part b) showing the structure of the organic products.

(0/1 marks)

Write an equation for the complete combustion of the ester in part b).

(0/2 marks)

Question 4

This question is about esters.

Draw the skeletal formula of the ester ethyl 2-methylpropanoate.

(0/1 marks)

Write an equation for the reaction between the ester HCOOCH₂CH₂CH₃ and NaOH.

(0/1 marks)

Which two products are formed in the acid hydrolysis of the ester CH₃CH₂COOCH₂CH₃?

CH₃CH₂OH

CH₃COOH

CH₃OH

CH₃CH₂COOH

(0/2 marks)