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Edexcel IGCSE Chemistry 4.19 Alkane General Formula Questions

Practise using the alkane general formula to identify homologous series members and determine molecular formulae from given data.

Syllabus
First assessment 2019
Course
Chemistry 4CH1

Exam points

  • apply CnH2n+2 to choose which formula belongs to an alkane
  • determine an alkane molecular formula by substituting n or using relative formula mass data
  • compare empirical formulae by using alkane and alkene general formulae

Edexcel IGCSE Chemistry 4.19 Alkane General Formula Questions question 1

[Maximum number: 1]

Crude oil is a mixture of hydrocarbons.

One of the alkanes in the gasoline fraction has the displayed formula

Figure for Question Edexcel IGCSE Chemistry 4.19 Alkane General Formula Questions question 1 — Edexcel IGCSE Chemistry

Give the general formula for the alkanes.

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