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 the element E is surrounded by three other E atoms to form a sheet like structure. In allotrope C, each atom of the element E is surrounded by four other E atoms to form a rigid structure.(a) Name the element E.
(b) What is the allotrope A?
(c) What is the allotrope B?
(d) What is the allotrope C?
(e) Which allotrope is used in making jewellery?
(f) Which allotrope is used in making anode of a dry cell?

(a) Carbon is the element 'E' which exists in three allotropic forms A, B, and C.

(b) Buckminsterfullerene is the allotrope, A, of carbon in which the atoms are joined to form spherical molecules.

(c) Allotrope B is Graphite as it forms a sheet-like structure.

(d) Allotrope C is Diamond as it forms a rigid structure.

(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.

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Updated on: 10-Oct-2022

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