Give IUPAC name for each of the following
`C_(6)H_(5)-CH=CH-CO-CH_(3)`

Explanation

To determine the IUPAC name for the compound `C6H5-CH=CH-CO-CH3`, we can follow these steps:

### Step 1: Identify the Structure
The compound consists of a phenyl group (C6H5) attached to an aliphatic chain. The aliphatic part contains a double bond and a carbonyl group (ketone).

### Step 2: Number the Carbon Chain
We start numbering the carbon chain from the end closest to the functional group. The numbering will be as follows:
1. Carbon with the phenyl group (C6H5) is counted as carbon 1.
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