Column - I and Column - II contains four emtries each. Entries of Column -I are to be matched with some entries of Column - II . One or more than one entries of Column -I may have the matching with the same entries of Column - II.
`{:("column-I","column-II"),("(A) Chemisorption","(P) Not specific and decreases with temperature "),("(B) physisorption",(Q) "sepecific and increases with temperature"),("(C) Desorption of a solute on liquid surface","(R) Increases the surface tension of the liquid "),("(D)Adsorption of a solute on a liquid ","(S) Decreases the surface tension of the liquid "):}`

Answer

To solve the matching question between Column - I and Column - II, we will analyze each entry in Column - I and find the corresponding entry or entries in Column - II.

### Step-by-Step Solution:

1. **Match (A) Chemisorption:**
- Chemisorption is a type of adsorption that involves the formation of a chemical bond between the adsorbate and the surface. It is specific and generally increases with temperature.
- **Match:** (A) Chemisorption → (Q) "specific and increases with temperature"

2. **Match (B) Physisorption:**
- Physisorption refers to the physical adsorption of gas molecules onto a surface through weak van der Waals forces. It is not specific and tends to decrease with increasing temperature.
- **Match:** (B) Physisorption → (P) "Not specific and decreases with temperature"

3. **Match (C) Desorption of a solute on liquid surface:**
- Desorption refers to the process where adsorbed molecules leave the surface. When solute molecules desorb from a liquid surface, it leads to an increase in the surface tension of the liquid.
- **Match:** (C) Desorption of a solute on liquid surface → (R) "Increases the surface tension of the liquid"

4. **Match (D) Adsorption of a solute on a liquid:**
- Adsorption occurs when solute molecules attach to the surface of a liquid, which results in a decrease in the surface tension of that liquid.
- **Match:** (D) Adsorption of a solute on a liquid → (S) "Decreases the surface tension of the liquid"

### Final Matches:
- (A) Chemisorption → (Q)
- (B) Physisorption → (P)
- (C) Desorption of a solute on liquid surface → (R)
- (D) Adsorption of a solute on a liquid → (S)