In which of the following substances, carbon atoms are arranged in a regular tetrahedral structure?
A
Diamond
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B
Benzene
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C
Graphite
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D
Carbon black
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Solution
The correct option is A Diamond In diamond, carbon atoms are arranged in a regular tetrahedral structure. Each carbon atom is bonded to four
other carbon atoms.
In benzene, six carbon atoms form a hexagon.
Graphite is made of hexagonal arrays of carbon atoms placed in layers one above the other. Carbon black also has a similar structure to graphite but the molecules are less orderly arranged.