What is allotropy ? Give examples of allotropes.

Explanation

Two or more forms of the same elements in same physical state which differ in their physical properties but have same chemical properties are called allotropic forms or ( allotropes ) and the phenomenon is called allotropy.
(i) Diamod and graphite are allotropic forms of carbon .
(ii) Red phosphorous and white phosphorous are allotropes of phoshorous.
(iii) Rhombic sulphur, monoclinic sulphur and plastic sulphur are allotropic forms of sulphur .