The table shows the temperature at five levels in a fractionating column. Crude oil vapour enters at the bottom.
| Level | Temperature (∘C^\circ\mathrm{C}∘C) |
|---|---|
| 5 (top) | 30 |
| 4 | 90 |
| 3 | 160 |
| 2 | 230 |
| 1 (bottom) | 340 |
A hydrocarbon in the crude oil has a boiling point of 200 ∘C200\,^\circ\mathrm{C}200∘C.
At which level does this hydrocarbon condense and get collected?
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131 exam-style questions on OCR GCSE Chemistry 6.2 Organic chemistry, covering 6.2.1 Crude oil and fractional distillation, 6.2.2 Cracking and dependence on hydrocarbons, 6.2.3 Functional groups and homologous series, 6.2.4 Reactions of alkanes, alkenes and alcohols, 6.2.5 Addition polymerisation and repeat units, 6.2.6 Naturally occurring polymers, 6.2.7 Chemical cells and fuel cells, and 6.2.8 Condensation polymerisation and how to make one. Each one has a worked solution and a mark scheme showing where the marks go.