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Edexcel IGCSE Chemistry 4.41C ester formulae

Edexcel IGCSE Chemistry 4.41C ester formulae
Edexcel IGCSE Chemistry syllabusChemistry 4CH1First assessment 2019

Practise ester-formula questions by deducing alcohols and acids, drawing ester links and choosing correct ester names from structures.

How this is tested

  • Deduce the alcohol and carboxylic acid from an ester name or displayed formula.
  • Draw the displayed formula of an ester, showing the ester link and all bonds clearly.
  • Choose the correct ester name or structural formula from methyl, ethyl, propyl and butyl options.

Question 4

Question 4(c)

(a)

Grapes also contain esters.

This is the structural formula of an ester.

CH3COOCH2CH2CH2CH3\mathrm{CH}_{3} \mathrm{COOCH}_{2} \mathrm{CH}_{2} \mathrm{CH}_{2} \mathrm{CH}_{3}
[ 4 ]

Question 4(c)(i)

(i)

Draw the displayed formula of this ester.

[ 2 ]

Question 4(c)(ii)

(ii)

Deduce the name of the carboxylic acid and the name of the alcohol that react to form this ester.
alcohol

[ 2 ]