Which of these is incorrect:
Correct answer: C. Only lighter gases show physical adsorption at low temp.
- A. Some times physical adsorption pass over to chemisorption on increasing the temperature of the system.
- B. Oxygen is adsorbed on charcoal but on desorption it also releases CO and CO2
- C. Only lighter gases show physical adsorption at low temp.
- D. Activation energy of chemisorption > activation energy of physical adsorption
Explanation
All gases show the physical adsorption at low temperature.
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