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7.1 Carbon compounds as fuels and feedstock

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Question 27

A chemical supplier has classified four compounds in its catalogue. Three classifications are correct and one is incorrect.

CompoundMolecular formulaClassification
PC5H10\text{C}_5\text{H}_{10}C5​H10​Not a hydrocarbon
QC3H8O\text{C}_3\text{H}_8\text{O}C3​H8​ONot a hydrocarbon
RC2H4Cl2\text{C}_2\text{H}_4\text{Cl}_2C2​H4​Cl2​Not a hydrocarbon
SCO2\text{CO}_2CO2​Not a hydrocarbon

Which one of these corrections should be made?

[1]
A

Change compound R to ‘hydrocarbon’.

B

Change compound S to ‘hydrocarbon’.

C

Change compound P to ‘hydrocarbon’.

D

Change compound Q to ‘hydrocarbon’.

Markscheme

7.1 Carbon compounds as fuels and feedstock Questions

  1. GCSE
  2. /Chemistry
  3. /7.1 Carbon compounds as fuels and feedstock

91 exam-style questions on AQA GCSE Chemistry 7.1 Carbon compounds as fuels and feedstock, covering 7.1.1 Crude oil, hydrocarbons and alkanes, 7.1.2 Fractional distillation and petrochemicals, 7.1.3 Properties of hydrocarbons, and 7.1.4 Cracking and alkenes. Each one has a worked solution and a mark scheme showing where the marks go.

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