Edexcel IGCSE Chemistry 4.21 alkane formulae and names

Edexcel IGCSE Chemistry syllabusChemistry 4CH1First assessment 2019

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

How this is tested

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: 2]

Butane $\left(\mathrm{C}_{4} \mathrm{H}_{10}\right)$ is an alkane.

$\mathrm{C}_{4} \mathrm{H}_{10}$ exists as two isomers.

Draw the displayed formula of each isomer.