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7 Organic chemistry

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Question 34

An engineer tests two liquid hydrocarbon fuels in a burner. The fuels are at the same temperature.

FuelMolecular formula
PC6H14\text{C}_6\text{H}_{14}C6​H14​
QC12H26\text{C}_{12}\text{H}_{26}C12​H26​
a.

State which fuel has the larger molecules.

[1]
b.

State which fuel:

  • flows more easily through the burner pipe
  • ignites more easily.
[2]
c.

Fuel P undergoes complete combustion in a plentiful supply of oxygen.

Name the two products formed.

[2]
Markscheme

7 Organic chemistry Questions

  1. GCSE
  2. /Chemistry
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