An element $$E$$ exists in three allotropic forms $$A, B$$ and $$C$$. In allotrope $$A$$, the atoms of element $$E$$ are joined to form spherical molecules. In allotrope $$B$$, each atom of element $$E$$ is surrounded by three $$E$$ atoms to form a sheet-like structure. In allotrope $$C$$, each atom of element $$E$$ is surrounded by four other $$E$$ atoms to form a rigid structure.
(a) Name the element $$E$$.
(b) What is allotrope $$A$$?
(c) What is allotrope $$B$$?
(d) What is allotrope $$C$$?
(e) Which allotrope is used in making jewellery?
(f) Which allotrope is used in making anode of a dry cell?
(a) Element $$E$$ is Carbon since Carbon has the three mentioned allotropic forms.
(b) Allotrope $$A$$ is Buckminsterfullerene.
(c) Allotrope $$B$$ is Graphite.
(d) Allotrope $$C$$ is Diamond.
(e) Allotrope $$C$$ that is Diamond is used in making jewellery.
(f) Allotrope $$B$$ that is Graphite is used in making anode of a dry cell.