Edexcel IGCSE Chemistry 4.21 alkane formulae and names

Practise alkane formula questions by naming structures, determining molecular and empirical formulae and drawing C4H10 isomers.

Exam points

Give the IUPAC name from a structural or displayed formula of an alkane.
Determine molecular and empirical formulae from displayed or structural alkane formulae.
Draw displayed formulae for C4H10 isomers and distinguish butane from methylpropane.

[Maximum number: 1]

Crude oil is a mixture of hydrocarbons.

One of the hydrocarbons in the refinery gas fraction is an alkane with the structural formula $\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CH}_{2} \mathrm{CH}_{3}$

Give the name of this alkane.

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4.21 Alkane structures and isomers question 1