Question

Which of the following is the correct reason for graphite as a lubricant?

• A. Delocalized $\pi$-electrons
• B. Strong covalent bonds between carbon atoms
• C. Van der Waals forces between layers
• D. Tetra valency of carbon

Answer 1

The correct option is C Van der Waals forces between layers

When external forces on the graphite are applied, one layer displaces over other layers easily due to weak van der waal forces.