Question

An element occupies group No.14 and period number 2 exists in
different allotropic forms. One form of this element has lubricating
property (A). Another form is the hardest substance (B). New allotrope
of this element is named as `Buckyball' (C) and it is superconducting.
Identify the element, (A) (B) and (C).

Answer 1

A . Diamond B. Buckminster fllurene C. Graphite.

Answer 2

A . Diamond B. Buckminster fllurene C. Graphite.