Q. In physical adsorption gas molecules are bound on the solid surface by

A) Chemical forces
B) Electrostatic forces
C) Graphical forces
D) Van der Waals’ forces
Explanation

(d)
In physical adsorption, gas molecules over the surface of adsorbent are held by weak van der Waals’ forces

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.