When an organic compound X is warmed with alkaline solution of `KMnO_4` a new compound Y is formed which smells of vinegar. On heating compounds X and Y with a few drops of concentrated sulphuric acid another compound Z is formed. Name the compound Z

Explanation

To solve the question step by step, let's break down the information provided and analyze the reactions involved.

### Step 1: Identify Compound X
The question states that when an organic compound X is warmed with an alkaline solution of KMnO4, a new compound Y is formed that smells like vinegar.

- **Hint**: Remember that vinegar is primarily acetic acid (CH3COOH), which suggests that compound Y is likely acetic acid.

### Step 2: Determine the Reaction
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