Which of the following is incorrect for ${ }^{"}{\mathrm{C}}_{60}"$ fullerene?
 

${\mathrm{C}}_{60}$ consists of 60 carbon atoms and 90 bonds, of which 30 are aromatic double bonds and 60 are single bonds. There are 12 pentagonal and 20 hexagonal structures. The single bonds are found in the pentagonal structures, and the double bonds are found in the bridging bonds between pentagonal structures.

The correct option is number of C-C linkage is 60.