Compared with the fraction from the bottom of a fractional distillation column, the fraction collected from the top of the column:
has a higher boiling point.
is easier to ignite.
has larger molecules with longer carbon chains.
has a higher viscosity.
Practise Edexcel GCSE Chemistry Fuels with exam-style questions for Foundation and Higher tier. 100 questions, matched to the Edexcel GCSE Chemistry (1CH0) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.