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The structures of three organic compounds, P, Q, and R, are shown below:

Structures of compounds P, Q, and R

Which of these compounds are hydrocarbons?

P only

P and R only

Q and R only

P, Q and R

Fuels Questions

Practise Edexcel GCSE Chemistry Fuels with exam-style questions for Foundation and Higher tier. 100 questions, matched to the Edexcel GCSE Chemistry (1CH0) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.

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