Write any two characteristics of Chemisorption.

Explanation

### Step-by-Step Solution:

1. **Definition of Chemisorption**:
- Chemisorption is a type of adsorption that involves a chemical reaction between the adsorbate (the substance being adsorbed) and the adsorbent (the surface on which adsorption occurs). This process leads to the formation of new chemical bonds.

2. **Characteristic 1**:
- **Chemical Bond Formation**:
- Chemisorption occurs due to the formation of strong chemical bonds between the adsorbate and the adsorbent. This distinguishes it from physisorption, which involves weaker van der Waals forces.
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