This question is about different forms of carbon - AQA - GCSE Chemistry - Question 3 - 2022 - Paper 1
Question 3
This question is about different forms of carbon.
Figure 5 represents the structure of diamond.
Figure 5
Key
☐ Carbon atom
Describe the structure and bonding of... show full transcript
Worked Solution & Example Answer:This question is about different forms of carbon - AQA - GCSE Chemistry - Question 3 - 2022 - Paper 1
Step 1
Describe the structure and bonding of diamond.
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Answer
Diamond has a giant covalent structure, which means it consists of a large lattice of atoms. Each carbon atom forms four covalent bonds with other carbon atoms. This arrangement results in a strong, rigid structure that contributes to diamond's remarkable hardness.
Step 2
Explain why diamond has a very high melting point.
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Answer
The strong covalent bonds within the diamond structure mean that a lot of energy is required to break these bonds during melting. Consequently, diamond possesses a very high melting point.
Step 3
What is the name of this type of molecule?
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Answer
Fullerene
Step 4
Suggest one reason why the C₇₀ molecule is suitable for this use.
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Answer
C₇₀ is hollow, which allows it to act as a cage for transporting drugs.
Step 5
Calculate the number of C₇₀ molecules that can be made from one mole of carbon atoms.
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