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

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12 and 13

20 and 3

20 and 4

12 and 4

answer is C.

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Detailed Solution

C₆₀ is fullerene and is an allotrope of carbon. Its shape resembles to a soccer ball. Number of pentagons in C₆₀ is 12 and number of hexagons in C₆₀ is 20.

White phosphorus is one of the most common allotrope of phosphorus. Number of triangles in white phosphorus is 4.

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