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Last Updated On [03-11-2023]

C60, an allotrope of carbon contains

 

(a)

16 hexagons and 16 pentagons

(b)

18 hexagons and 14 pentagons

(c)

20 hexagons and 12 pentagons

(d)

12 hexagons and 20 pentagons


Question ID - 52605 :-

C60, an allotrope of carbon contains

 

(a)

16 hexagons and 16 pentagons

(b)

18 hexagons and 14 pentagons

(c)

20 hexagons and 12 pentagons

(d)

12 hexagons and 20 pentagons

1 Answer
5876 Votes
3537

Answer Key : (c) -

Fullerene (C60) contains 20 six membered rings and 12 five membered rings.



Next Question :

A particle is projected with 200 , at an angle of 60 . At the highest point it explodes into three particles of equal masses. One goes vertically upward with velocity 100  the second particle goes vertically downward with the same velocity as the first. Then what is the velocity of the third particle?

a)

120  with 60  angle

b)

200  with 30  angle

c)

50  vertically upwards

d)

300  horizontally


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