Question

Is Coal / Coke also an allotrope of Carbon? Why/Why not ?

Answer 1

Coal and coke are the amorphous allotropes of the carbon atom.

Allotropy is basically different forms of an element and coal and coke are also forms of the carbon atom. They comes in the amorphous allotropic form.

Answer 2

No, coal/coke are not allotrope of carbon but these are substance or fuel which is obtained due burning of organic compounds under high pressure & temperature in absence of oxygen and light. But allotropes are two or more different physical form of an can exist,
. I. e allotropes of carbon are diamonds and graphite