Chemistryhard · Past Paper
Which of the following statements about Diamond and Graphite is true?
AThey have the same crystal structure
BThey have the same degree of hardness
CThey have the same electrical conductivity
DThey produce the same amount of CO2 when 1g of each is burnt in excess oxygen
✓ Correct Answer: D — They produce the same amount of CO2 when 1g of each is burnt in excess oxygen
Since both are pure forms of carbon, burning equal masses of either will yield the same mass of carbon dioxide.
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