Carboxylic Acids and Derivatives - exam practice
Carboxylic Acids and Derivatives
Question 1 of 10
Name the ester shown in the diagram below.
Complete the diagram below to show the organic products of the reactions of the ester in part a).
Name the type of reaction occurring in part b).
Which two products are formed in the acid hydrolysis of phenyl methyl ethanoate?
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.
Name the ester with the structural formula (CH3)3CCOOCH3.
Write an equation for the alkaline hydrolysis of the ester in part b) showing the structure of the organic products.
Write an equation for the complete combustion of the ester in part b).
Acyl chlorides are important compounds in organic synthesis.
Write an equation for the reaction between propanol and ethanoyl chloride.
Name the organic product formed in part a).
Acid anhydrides react in a similar way to acyl chlorides.
Complete the equation below to show the reaction of salicylic acid with ethanoic anhydride to produce aspirin.
Give one advantage of using ethanoic anhydride instead of ethanoyl chloride in organic synthesis.
Propenoic acid is a carboxylic acid that contains a carbon-carbon double bond (C=C).
Draw the displayed formula of propenoic acid.
Propenoic acid reacts with ethanol in the presence of concentrated sulfuric acid.
Name and draw the product of this reaction.
The same product in part b) can be prepared using an acyl chloride instead of propenoic acid.
Draw the structure of this acyl chloride.
Identify three differences in the esterification reaction of ethanol when an acyl chloride is used instead of a carboxylic acid.
An ester was prepared by reacting (CH3)2CHOH with (CH3CO)2O.
Write an equation for this reaction and name the ester formed.
The ester produced in part a) was formed by a different reaction between (CH3)2CHOH and the acyl chloride CH3COCl.
Outline a mechanism for this reaction.
The ester shown in the diagram below can be hydrolysed with sodium hydroxide to make soap.
Complete the diagram to show an equation for this reaction.
The ester in part c) can also be used to produce biodiesel.
Complete the equation below for the formation of biodiesel.
This question is about acylation.
Name and outline a mechanism for the reaction between CH3CH2COCl and ammonia.
Name the type of compound produced in the reaction in part a).
Write an equation for the reaction between propanoyl chloride and methanol.
Name the type of compound produced in the reaction in part c).
Esters have many commercial uses including as flavourings in food.
Ethyl butanoate is used as pineapple flavouring in cakes.
Write an equation for the formation of ethyl butanoate from an alcohol and a carboxylic acid, showing the structures of all the organic compounds.
Name a suitable catalyst for the reaction in part a).
Ethyl butanoate could also be formed in the reaction between an alcohol and an acyl chloride.
Outline a mechanism for this reaction.
This question is about esters.
Draw the skeletal formula of the ester ethyl 2-methylpropanoate.
Write an equation for the reaction between the ester HCOOCH2CH2CH3 and NaOH.
Which two products are formed in the acid hydrolysis of the ester CH3CH2COOCH2CH3?
The molecule 2,6-dimethylphenylamine is used as a starting material in the synthesis of lidocaine, an anaesthetic used in dentistry.
Complete the diagram below to show the structure of the organic product formed when 2,6-dimethylphenylamine is reacted with ethanoyl chloride.
Name and outline a mechanism for the reaction in part a).
Use RNH2 to represent the molecule 2,6-dimethylphenylamine.
Draw the structure of the organic product formed when ethanoyl chloride is reacted with 2-methylpropan-1-ol.
Name the carboxylic acid shown in the diagram below.
Explain, using a labelled diagram, why the carboyxlic acid in part a) is soluble in water.
Write an equation for the reaction between the carboxylic acid in part a) and ethanol in the presence of a concentrated sulfuric acid catalyst.
Write an equation for the reaction between the carboxylic acid in part a) and sodium carbonate.