Which of the following is an example of physical adsorption?
A. Adsorption of acetic acid in solution by charcoal
B. Adsorption of O2 on tungsten
C. Adsorption of N2 on Fe
D. Adsorption of H2 on Ni
Answer:A
Which of the following is an example of physical adsorption?
A. Adsorption of acetic acid in solution by charcoal B. Adsorption of O2 on tungsten C. Adsorption of N2 on Fe D. Adsorption of H2 on Ni