One recently discovered allotrope of carbon `(e.g. C_(60))` is commonly known as ……………………. ,

C_(60) an allotrope of carbon contains

C_(60) , an allotrope of carbon contains :

C_(60) is aromatic allotrope of carbon containing

x. The hybrid state of carbon atoms in C_(60) molecule is :

Assertion (A) : C_(60) fullerence is an allotrope if carbon. Reason (R) :In C_(60) fullerene , five -menmebrd rings are isolated forem each other .

One of the oldest, best preserved and most complete hominid fossil commonly known as 'lucy' belongs to the genus

How many of the following statements are correct regarding allotropes of carbon: (a) Graphite is not a good conductor of electicity in perpendicular direction of layers at ordinary temperatures. (b) Coke is the impure form of carbon. ( c) Anthracite is the purest form of carbon. (d) Buckminister fullerence contains 12 five membered rings and 20 six-membered rings. (e) Diamond is a good conductor of heat. (f) Graphite is diamagnetic in nature. (g) Graphite is thermodynamically more stable than diamond

Elemental carbon appears in many structural forms or allotropes . Three of these forms are crystalline -diamond ,graphite and the recently discovered fullerene (bucky ball ) -while more than 40 others including coke and carbon black are amorphous . Now there seems to be set as fourth crystalline allotrope of carbon. reported in 1995 by Lagow at the University of Texas . Newly discovered allotrope of carbon has the form :

The process of exchange of ……..A…….from the atmosphere with CO_2 produced by the cells is called …….B……., commonly known as ………..C….. . Choose the alternative that will correctly replace A, B and C in the above statement and make it meaningful.

A diploid with only one allele (e.g., man is for XY chromosomes) is known as