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chemistry igcse acapprinted 140 · PDF 140
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Aitchison College Academic Resources.
1 Diamond and graphite are different solid forms of carbon. The carbon atoms in diamond and
Graphite are arranged in different ways.
(a) State the number of covalent bonds each carbon atom has in diamond.
{1}
(b) State the term used to describe the structure of diamond.
{1}
(c) Name an oxide that has a similar structure to diamond.
{1}
(d) Describe the arrangement of atoms in graphite.
(2)
(e) Explain how graphite conducts electricity.
{1}
(f) Buckminsterfullerene is a simple molecular form of carbon.
The relative molecular mass of Buckminsterfullerene is 720.
Determine the number of carbon atoms in one molecule of Buckminsterfullerene.
(1)
(g) All forms of carbon burn to produce carbon dioxide.
Name the substance used to test for carbon dioxide.
1]
[Total: 8]
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