CAIE IGCSE Chemistry 11.2.4 Displayed Formulae of the Unbranched Questions

Work through real CAIE IGCSE Chemistry questions to name and draw ester linkages, match reactants and check short-chain molecular formulae.

Syllabus
2026–2028
Course
Chemistry 0620

Exam points

  • name esters by linking the alcohol alkyl group to the acid-derived alkanoate name
  • draw displayed ester formulae with the correct -COO- linkage and carbon chain lengths
  • choose the ester formed from a given unbranched alcohol and carboxylic acid pair
  • use molecular formulae to identify or distinguish unbranched ester isomers up to four carbons

CAIE IGCSE Chemistry 11.2.4 Displayed Formulae of the Unbranched Questions question 1

[Maximum number: 1]

The structures of two compounds used to make an ester are shown.

Figure for Question CAIE IGCSE Chemistry 11.2.4 Displayed Formulae of the Unbranched Questions question 1 — CAIE IGCSE Chemistry
Figure for Question CAIE IGCSE Chemistry 11.2.4 Displayed Formulae of the Unbranched Questions question 1 — CAIE IGCSE Chemistry

What is the name of the ester?

A

ethyl propanoate

B

propyl ethanoate

C

ethyl ethanoate

D

propyl propanoate

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