JEE Main On 16 April 2018 Question 18

Question: Which one of the following is not a property of physical adsorption?

Options:

A) Lower the temperature, more the adsorption

B) Greater the surface area, more the adsorption

C) Higher the pressure, more the adsorption

D) Unilayer adsorption occurs

Show Answer

Answer:

Correct Answer: D

Solution:

  • The physical adsorption is temperature and pressure dependent. It increases with increase in pressure and decreases with increase in temperature. Also, when there is more surface area then physical adsorption will be more. Physical adsorption forms multiple layer of adsorption. Thus, statement given in option D is incorrect.