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Question

The number of CC linkages in C60 ( Fullerene ) is:

A
90
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B
95
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C
99
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D
100
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Solution

The correct option is A 90
C60 has 60 carbon atoms and 90 bonds, 60 of which are single bonds, and 30 of which are aromatic double bonds. It has 20 hexagonal structures and 12 pentagonal structures. The pentagonal structures contain the single bonds, and and the bridging bonds between pentagonal structures contain the double bonds.
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