state gov RPSC 2nd Grade Senior Teacher Mock Test Series 2025 General Science Chemistry Hydrocarbons
C60, 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
5
Question Not Attempted