Question

Mobility of the solid lubricants on the adsorbents promotes ___________

(a) Self-healing

(b) Maintain the molecular structure

(c) Ineffectiveness

(d) Effectiveness

I got this question in an international level competition.

This interesting question is from Classification of Lubricants in section Lubricants of Applied Chemistry

Answer 1

Correct answer is (a) Self-healing

For explanation: Mobility of solid lubricants on the surface of adsorbates promotes the self healing. It also prolongs the endurance of the films. As long as the film remains intact it can be protected.