Solve this following

Question:

The number of pentagons in $C_{60}$ and trigons (triangles) in white phosphorus, respectively, are:

  1. 12 and 3

  2. 20 and 4

  3. 12 and 4

  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 $\left(\mathrm{P}_{4}\right)=4$

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