Question

what is the mean of carbon allotropes

Answer 1

it is the various forms in which carbon is found

Answer 2

When an element exists in more than one crystalline form, those forms are called allotropes; the two most common allotropes of carbon are diamond and graphite. ... The distance between carbon atoms along the bond is 1.54 × 10−8 cm, and this is called the single-bond length.