Which one of the following hydrocarbons belongs to the same homologous series as pentane, C5H12\text{C}_5\text{H}_{12}C5H12?
C3H4\text{C}_3\text{H}_4C3H4
C3H6\text{C}_3\text{H}_6C3H6
C3H8\text{C}_3\text{H}_8C3H8
C3H10\text{C}_3\text{H}_{10}C3H10
130 exam-style questions on Edexcel GCSE Chemistry 9.1 Fuels, covering 9.1.1 Hydrocarbons and crude oil, 9.1.2 Fractional distillation of crude oil and its fractions, 9.1.3 The alkanes as a homologous series, 9.1.4 Complete and incomplete combustion, 9.1.5 Pollutants from burning fuels, 9.1.6 Hydrogen as a fuel and non-renewable fossil fuels, and 9.1.7 Cracking of larger alkanes. Each one has a worked solution and a mark scheme showing where the marks go.