MEDIUM
AS and A Level
IMPORTANT
Earn 100

In titration between ethanedioic acid and potassium manganate(VII) solutions, ethanedioic acid is heated in its conical flask before adding the potassium manganate(VII) solution from the burette. Suggest why.

Important Questions on Carboxylic Acids and their Derivatives

MEDIUM
AS and A Level
IMPORTANT
In an experiment to standardise a solution of potassium manganate(VII), 25.0 cm3 of a standard solution of 0.0500 mol dm-3 ethanedioic acid was fully oxidised by a titre of 8.65 cm3 of potassium manganate(VII) solution. Calculate the concentration of the potassium manganate(VII) solution.
EASY
AS and A Level
IMPORTANT
Write a balanced equation, using structural formulae for the organic compounds, and state any conditions necessary, to show the formation of propanoyl chloride from a suitable carboxylic acid and SOCl2.
EASY
AS and A Level
IMPORTANT
Write a balanced equation, using structural formulae for the organic compounds, and state any conditions necessary, to show the formation of methanoyl chloride from a suitable carboxylic acid and PCl3.
EASY
AS and A Level
IMPORTANT
Write a balanced equation, using structural formulae for the organic compounds, and state any conditions necessary, to show the formation of butanoyl chloride from a suitable carboxylic acid and PCl5.
MEDIUM
AS and A Level
IMPORTANT
In its reaction with a nucleophile, explain why an acyl chloride reacts faster than an alcohol.
MEDIUM
AS and A Level
IMPORTANT

Place the following compounds in order of ease of hydrolysis, starting with the most reactive.

C6H5Cl    CH3CH2COCl    CH3CH2CH2Cl.

HARD
AS and A Level
IMPORTANT

Explain your answer to following compounds in order of ease of hydrolysis, starting with the most reactive.

C6H5Cl    CH3CH2COCl    CH3CH2CH2Cl.