Write the systematic IUPAC names of the following compounds :
`CH_3 - overset(Cl) overset(|) (CH)-CH_2 - CH = CH_2`

Explanation

To determine the systematic IUPAC name of the compound `CH₃ - Cl - (CH) - CH₂ - CH = CH₂`, we will follow these steps:

### Step 1: Identify the Longest Carbon Chain
First, we need to identify the longest continuous carbon chain in the compound. In this case, the longest chain contains 5 carbon atoms.

### Step 2: Number the Carbon Chain
Next, we will number the carbon chain. To give the double bond the lowest possible number, we will start numbering from the end closest to the double bond. This gives us the following numbering:
1. C1 (CH₂)
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