Question: The number of pentagons in $C_{60}$ and trigons (triangles) in white phosphorus, respectively, are:
12 and 3
20 and 4
12 and 4
20 and 3
Correct Option: , 3
Solution:
Total No. of pentagons in $\mathrm{C}_{60}=12$
Total no. of trigons (triangles) in white phosphorus $\left(\mathrm{P}_{4}\right)=4$
