Question

Which of the following statement about fullerenes is incorrect?

• A. Fullerenes are the only impure form of carbon
• B. Fullerene are cage like molecules.
• C. Spherical fullerenes are also called bucky balls in short
• D. None of the above

Answer 1

The correct option is A Fullerenes are the only impure form of carbon

$\text{Graphite}\stackrel{\text{Electric Arc}}{\underset{\text{He or Ar}}{⟶}}\text{Fullerene}$
The sooty material formed by condensation of vaporized $C_n$ small molecules consists of mainly $C_{60}$ with smaller quantity of $C_{70}$ and traces of fullerenes consisting of even number of carbon atoms up to 350 or above.

Fullerenes are the only pure form of carbon because they have smooth structure without having ‘dangling’ bonds.
Fullerene are cage like molecules.
$C_{60}$ molecule has shape like a soccer ball and is called Buckminsterfullerene.
Spherical fullerenes are also called bucky balls in short.