`CH_(3)-CH=CH-CH=CH-C_(2)H_(5)` (Molecule with dissimilar ends). Number of Geometrical isomers :

Explanation

To determine the number of geometrical isomers for the molecule \( CH_3-CH=CH-CH=CH-C_2H_5 \), we will follow these steps:

### Step 1: Identify the double bonds
The given molecule has two double bonds. The presence of double bonds is crucial because geometrical isomers arise from the restricted rotation around these double bonds.

### Step 2: Identify the stereocenters
A stereocenter is typically a carbon atom that is bonded to four different substituents. In our case, we need to analyze the double bonds to identify if they can create geometrical isomers.

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