Suggest a suitable oxidising agent for the given conversion.
`(CH_(3))_(2)C = CH-COCH_(3) to (CH_(3))_(2) C= CHCOOH`

Explanation

To convert the compound `(CH₃)₂C=CH-COCH₃` to `(CH₃)₂C=CH-COOH`, we need to oxidize the ketone functional group (C=O) to a carboxylic acid (COOH) while retaining the double bond in the molecule.

### Step-by-Step Solution:

1. **Identify the Functional Groups**:
- The starting compound `(CH₃)₂C=CH-COCH₃` contains a double bond (C=C) and a ketone (C=O) functional group.
- The target compound `(CH₃)₂C=CH-COOH` contains the same double bond but has the ketone converted to a carboxylic acid.

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