railway DFCCIL Junior Executive 2023 (CBT 1 & CBT 2) Mock Test General Science Chemistry Classification of Elements and Periodicity in Properties
Which of the following carbon allotropes is/are good conductor(s) of electricity ?
1. Diamond
2. Graphite
3. Fullerene
Select the correct answer using the code given below :
1
1 only
2
1 and 2 only
3
2 only
4
1 and 3 only