C-C bond length is maximum in ___ .
diamond
graphite
naphthalene
fullerene
If you look at the structural diagram of all three.
You will observe that,
Answer the following questions :
(a) Why is graphite a good conductor of electricity but not diamond ?
(b) Why is diamond very hard ?
(c) What are fullerenes ? Name the most common fullerene.
(d) What impurity is present in black diamond ?