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7 Organic chemistry

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Question 11
F

Crude oil is heated before it enters a fractionating column.

a.

Explain why the crude oil is heated before it enters the column.

[2]
b.

The fraction with the lowest boiling point is collected at the top of the column. Explain why.

[2]
c.

Fractional distillation is a physical process. Give one reason why fractional distillation is a physical process and not a chemical reaction.

[1]
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7 Organic chemistry Questions

  1. GCSE
  2. /Chemistry
  3. /7 Organic chemistry

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