MolSynapsequestion bank
MolSynapse / Question bank / p-Block Elements: Groups 13 and 14 / Carbon allotropes, oxides of carbon
JEE Advanced levelSingle correct optionDifficulty 3 of 3pb073

In a single layer of graphite (treat the layer as an infinite honeycomb), each carbon atom is shared by three hexagons and each C--C bond is shared by two hexagons. The effective number of carbon atoms and of C--C sigma bonds belonging to one hexagon is respectively

  1. A2 and 6
  2. B3 and 2
  3. C2 and 3
  4. D6 and 6

Answer: C

Effective atoms per hexagon . Effective bonds per hexagon . So the numbers are 2 and 3.
Practice p-Block Elements: Groups 13 and 14 More on Carbon allotropes, oxides of carbon
Previous questionNext question

More questions on Carbon allotropes, oxides of carbon