Write the structure of the major organic product expected from each of the following reactions:
`CH_(3)CH_(2)CHCl_(2)underset("alkali")overset("Boil")to`

Explanation

To determine the major organic product from the reaction of dichloropropane (CH₃CH₂CHCl₂) when boiled in the presence of alkali, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Reactant**:
The reactant is 1,2-dichloropropane (CH₃CH₂CHCl₂). This compound has two chlorine atoms attached to the second carbon of the propane chain.

2. **Reaction with Alkali**:
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