17 Questions
What is formed when a nitrile is hydrolyzed by dilute acid?
A carboxylic acid and ammonium salt
What is the functional group present in carboxylic acids?
-COOH
Which of the following reactions can be used to prepare carboxylic acids?
Oxidation of primary alcohols and aldehydes
What is the purpose of acidification in the hydrolysis of nitriles by dilute alkali?
To change the carboxylate ion into a carboxylic acid
What is the colour of the dichromate ions in K2Cr2O7?
Orange
What is the product of the condensation reaction between an alcohol and a carboxylic acid?
An ester
What is the result of converting the -CN group to a -COOH group?
Formation of a carboxylic acid
What is the product of the oxidation of primary alcohols and aldehydes?
Carboxylic acids
What is the final product of the hydrolysis of nitriles, regardless of the method used?
A carboxylic acid
What is the role of acidified K2Cr2O7 and acidified KMnO4 in the preparation of carboxylic acids?
Oxidising agents
What is the colour of the MnO4- ions in KMnO4?
Purple
What is the result of the hydrolysis of esters by dilute acid?
Formation of a carboxylic acid and an alcohol
What is the characteristic of carboxylic acids in water?
They partially dissociate in water
What is the pH value of a carboxylic acid solution?
Less than 7
What is the result of the hydrolysis of esters by dilute alkali and heat followed by acidification?
Formation of a carboxylic acid and an alcohol
What type of reaction does carboxylic acid undergo with alkali?
Neutralisation reaction
What is the purpose of acidification in the hydrolysis of esters by dilute alkali and heat?
To change the carboxylate ion into a carboxylic acid
Test your knowledge on carboxylic acids, including their production, functional groups, and reactions. Prepare for your CIE AS Chemistry exam with this quiz.
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