The number of ___ membered rings 20 and ___ membered rings 12 are in buck minster fullerence respectively

The number of ........ membered rings 20 and ... membered rings 12 are in the 'Buckminster fullerene' respectively

How many 5-membered rings and 6-membered rings are found in steriods?

Bucky ball or buck minster fullerence is :

Number of fused six membered rings in sterol ?

The number of six membered carbon rings in the structure of Buckminsterfullerene (i.e. C_60 )is .

The number of five-membered and six-membered carbocyclic rings present in the fullerene C_(60) molecule are, respectively.

How many five- membered and six-membered rings are present in C_60 fullerene?

Number of six membered rings present in a steroid nucleus is