Assertion (A) : C_(60) fullerence is an allotrope if carbon. Reason (R) :In C_(60) fullerene , five -menmebrd rings are isolated forem each other .
Fullerenes constitute a family of crystalline allotropes of carbon consisting of spherical or ellipsoidal molecules of composition C_(2n) when n is gt = ____.
_____ is a crystalline allotrope of carbon with 60 carbon atoms having a spherical shape.
Which of the following statements is INCORRECT? In fullerene (C60) total number of bonds( sigma and pi) is 90 Fullerene is purest form among allotropes of carbon Diamond is purest form among allotropes of carbon In fullerene (C60) "20" six membered rings and "12" five membered rings are present