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

Options

A. Unilayer adsorption occurs
B. Greater the surface area, more the adsorption
C. Lower the temperature, more the adsorption
D. Higher the pressure, more the adsorption

Explanation

To determine which of the given options is not a property of physical adsorption, we need to analyze the characteristics of physical adsorption.

### Step-by-Step Solution:

1. **Understanding Physical Adsorption**:
- Physical adsorption, also known as physisorption, involves weak van der Waals forces between the adsorbate and the adsorbent. It is generally reversible and depends on temperature and pressure.

2. **Analyzing the Options**:
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