Give all the structural isomers `(` excloding stereoisomers and allenes `)` of diene with the molecular formula `C_(6)H_(10)`.

Explanation

To find all the structural isomers (excluding stereoisomers and allenes) of diene with the molecular formula C₆H₁₀, we will follow these steps:

### Step 1: Calculate the Double Bond Equivalent (DBE)
The formula for calculating the double bond equivalent (DBE) is:
\[ \text{DBE} = \frac{(2C + 2 - H)}{2} \]
where C is the number of carbon atoms and H is the number of hydrogen atoms.
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