A research team is investigating two samples of carbon as possible carriers for a drug. The structural observations are shown in the table.
| Sample | Structural observation |
|---|---|
| T | The carbon atoms form one continuous flat sheet. |
| U | The carbon atoms are bonded into closed cages of 60 carbon atoms, each enclosing an empty space. |
The drug must be carried inside a carbon structure.
Which sample should be selected? Explain how its structure could make it suitable for this use and explain whether it is a giant covalent structure.
68 exam-style questions on AQA GCSE Chemistry 2.3 Structure and bonding of carbon, covering 2.3.1 Diamond, 2.3.2 Graphite, and 2.3.3 Graphene and fullerenes. Each one has a worked solution and a mark scheme showing where the marks go.