Question

Define allotropy give and structure and properties of demand diamond

Answer 1

allotrophy means substances which exist in more than one form in our surrounding
ex carbon which exist in graphite and diamond

Answer 2

Answer:

• Diamond is very hard with high melting point (3873 K) and high density of 3.51 gm cm due to its three dimensional giant structure.
• The heat of formation (A,H) for diamond is 1.90 kJ moll.
• Diamond is a non-conductor of electricity as there are no free electrons in the crystal structure.