Chemistry · May / June 2016 · Paper 11 · Question 7
Which statement shows that graphite and diamond are different forms of the element carbon?
- ABoth graphite and diamond have giant molecular structures.
- BComplete combustion of equal masses of graphite and diamond produces equal masses of carbon dioxide and no other products.
- CGraphite and diamond have different melting points.
- DGraphite conducts electricity, whereas diamond does not.
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Correct answer: B. Complete combustion of equal masses of graphite and diamond produces equal masses of carbon dioxide and no other products.
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