JEE PYQ: P Block Elements Question 48
Question 48 - 2019 (09 Apr Shift 1)
$\text{C}_{60}$, an allotrope of carbon contains:
(1) 12 hexagons and 20 pentagons.
(2) 18 hexagons and 14 pentagons.
(3) 16 hexagons and 16 pentagons.
(4) 20 hexagons and 12 pentagons.
Show Answer
Answer: (4)
Solution
Fullerene ($\text{C}_{60}$) contains 20 hexagons (six membered) rings and 12 pentagons (five membered rings).