Question

Graphite is black in colour. This is because

• A. graphite is obtained from coke which is black in colour
• B. it is an allotrope of carbon
• C. it is impure and amorphous form of carbon
• D. in graphite, the fourth non bonded singly occupied $p_z$ - orbital of each C-atom overlaps to give completely delocalized system of molecular orbitals. Due to the excitation of these electrons, graphite appears hlack

Answer 1

Answer: (D)

in graphite, the fourth non bonded singly occupied $p_z$ - orbital of each C-atom overlaps to give completely delocalized system of molecular orbitals. Due to the excitation of these electrons, graphite appears hlack

Answer 2

In graphite, the fourth $p_z$ orbital of each C-atom overlaps to give completely delocalized system of molecular orbitals. Due to the excitation of these delocalized electrons, graphite appears black.