Question

Pick the odd one out.

Charcoal; coal; graphite; gas carbon

Answer 1

The odd one out is : Graphite

Explanation for odd option :

• Graphite is the only crystalline allotrope of carbon among all the other three.
• Crystalline solids have a definite arrangement of atoms in their structure.
• In graphite one carbon atom is bonded to three other carbon atoms giving a hexagonal structure.

Explanation for other option :

Charcoal, coal and gas carbon all three are amorphous forms of carbon i.e. the arrangement of carbon atoms in it is not definite. So, they are amorphous forms of carbon.