CAIE IGCSE Chemistry 11.2.3 Structural and Displayed Formulae of Questions

Work through real CAIE IGCSE Chemistry questions to name and draw small organic molecules, including positional isomers and carboxylic acids.

Exam points

draw and name unbranched alkanes and alkenes up to four carbons, including but-1-ene and but-2-ene
draw and name positional alcohol isomers such as propan-1-ol and propan-2-ol
draw and name unbranched carboxylic acids up to four carbons while showing every atom and bond

[Maximum number: 2]

Many organic compounds contain carbon and hydrogen only.

Carboxylic acids and esters contain carbon, hydrogen and oxygen only.

An ester X and a carboxylic acid Y both contain 3 carbon atoms.
X and Y have the same molecular formula.

Draw the displayed formula of carboxylic acid Y. Name the carboxylic acid.
name

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CAIE IGCSE Chemistry 11.2.3 Structural and Displayed Formulae of Questions question 1