Q.

‘X’ is chemically most inert allotropic form of carbon which is very hard with high melting point. It is used as an abrasive . The allotrope ‘X’ is

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a

Diamond

b

Fullerene

c

Graphite

d

Coke

answer is A.

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Detailed Solution

Diamond is the chemically most inert allotropic form of carbon which is very hard with high melting point. It is used as an abrasive.It has 3-D network structure with strong C-C bonds.
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‘X’ is chemically most inert allotropic form of carbon which is very hard with high melting point. It is used as an abrasive . The allotrope ‘X’ is