Question

Which of the following statements is not applicable to chemisorption?
A. It is slow
B. It is irreversible
C. It is highly specific
D. It is independent of temperature

Answer 1

Hint: Chemical adsorption takes place between the adsorbate and adsorbent due to chemical or ionic bonding. It is dependent on temperature.

Complete Step by Step Solution:
The process of chemisorption is additionally called chemical adsorption. In the method of chemisorption or chemical adsorption, the adsorption takes place between the adsorbate and adsorbent due to chemical or ionic bonding.

The properties of chemisorption are as follows-
1. It is high specificity which means it's extremely specific.
2. Chemisorption is irreversible in nature and it additionally favours in presence of high pressure.
3. Chemisorption depends on the surface area of the adsorbent because as the surface area of the adsorbent will increase, chemisorption additionally will increase.
4. Chemisorption is the slowest process.
5. It is not independent of temperature. It first increases with increase in temperature then decreases.
Thus the correct option is D.

Note: The process of holding gas, liquid or solid molecules on solid is called as adsorption. There are two types of adsorption present. One is physical adsorption and another one is chemical adsorption.