Researchers record information about three organic compounds in a database.
| Compound | Origin | Arrangement of carbon atoms |
|---|---|---|
| P | natural | a straight chain |
| Q | natural | a ring |
| R | synthetic | a branched chain |
A student concludes:
“Natural organic compounds have only straight carbon chains, whereas synthetic organic compounds can have branched chains or rings.”
Evaluate the student's conclusion using the data in the table.
Explain how the bonding of carbon atoms allows many more organic compounds to exist than those shown in the table.
122 exam-style questions on OCR GCSE Chemistry 2.3 Properties of materials, covering 2.3.1 Carbon bonding and the variety of organic compounds, 2.3.2 Diamond, graphite, fullerenes and graphene, 2.3.3 Bond strength, changes of state and predicting states, 2.3.4 Bulk properties and types of bonding, and 2.3.5 Nanoparticles: scale, surface area, uses and risks. Each one has a worked solution and a mark scheme showing where the marks go.