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Which statement best explains why the petrol fraction obtained from fractional distillation contains mainly molecules with a similar number of carbon atoms?.
- A.Petrol is made up of a single compound that has a fixed number of carbon atoms.
- B.Petrol is a mixture of many different hydrocarbons, but the distillation process separates them by their boiling points, which are related to the number of carbon atoms.
- C.Petrol is produced by adding a catalyst that forces all molecules to have the same number of carbon atoms.
- D.Petrol is a mixture of hydrocarbons that all have the same boiling point regardless of their size.
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