Short answerEasy2 marks
1(d)
State one observation for each of the following:
Write the structural formula of the two isomers of butane.
Topic: Organic chemistry: structure, nomenclature and reactions
Previous-year question practice database
Answer
Solution diagram

Exam answer
n-Butane: CH₃–CH₂–CH₂–CH₃ 2-methylpropane: CH₃–CH(CH₃)–CH₃.
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