Question
Identify the incorrect statement.
A.
Graphite is thermodynamically most stable allotrope of carbon.
B.
Other forms of elemental carbon like coke, carbon black, charcoal are impure forms of graphite.
C.
All allotropes of carbon have thermodynamically different stability.
D.
Charcoal and coke are obtained by heating wood in absence of air.
Answer :
Charcoal and coke are obtained by heating wood in absence of air.
Solution :
Charcoal is obtained from wood while coke is obtained from coal.