Question

Diamond is harder than Graphite because of
A) tetrahedral structure of diamond B) difference of crystalline structures C) difference of layers of atoms D) hexagonal structure of graphite

Answer 1

Answer:

$\bigstar\:\underline{\boxed{\bf{\red{Diamond:}}}}$

• A rigid three - dimensional (3D) network of sp³ hybridised carbon atoms, hardest substance known and used as an abrasive.

$\bigstar\:\underline{\boxed{\bf{\blue{Graphite:}}}}$

• Most stable allotrope, having layered structure in which each layer sp² hybridised carbon atoms in hexagonal rings and adjacent layers are help together by van der Waals forces, soft, slippery, conductor of electricity and used as lubricant in machines.

➡ Diamond is harder than Graphite because of difference of crystalline structures.

➡ Option - B) ✔

Answer 2

YOUR ANSWER :

Diamond is harder than Graphite because of difference of crystalline structures.

CORRECT OPTION : B

ADDITIONAL INFORMATION :

\green{\boxed{\boxed{\boxed{ Diamond}}}

Diamond is made entirely of Carbon atoms, crystallized in a cubic arrangement. It is an allotrope of Carbon. Diamond is the hardest known material on the earth. Also, it is chemically resistant and has the highest thermal conductivity among any natural material.

\green{\boxed{\boxed{\boxed{ Graphite}}}}

Graphite is a non-metal. It is an allotrope of carbon which is a non-metal. Graphite is used in locks as a dry lubricant and pencils due to its soft and slippery nature.