Why reactions having higher molecularity are less observed ?

Explanation

### Step-by-Step Solution:

1. **Understanding Molecularity**:
- Molecularity refers to the number of reactant molecules that collide simultaneously to form a transition state during a chemical reaction. For example, a unimolecular reaction involves one molecule, a bimolecular reaction involves two, and so on.

2. **Collision Theory**:
- According to collision theory, chemical reactions occur as a result of collisions between reactant molecules. The more molecules that collide simultaneously, the higher the molecularity of the reaction.

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