Name the functional group present in `CH_3CHO` .

Explanation

To determine the functional group present in the compound CH₃CHO, we can follow these steps:

### Step 1: Identify the structure of CH₃CHO
- The molecular formula CH₃CHO indicates that the compound has a carbon chain with a carbonyl group (C=O) and a hydroxyl group (–OH) attached to it.

### Step 2: Break down the molecule
- CH₃CHO can be broken down into two parts:
- CH₃ (methyl group)
- CHO (which contains the carbonyl group)

### Step 3: Analyze the functional group
- The CHO part of the molecule is crucial. It consists of a carbon atom double-bonded to an oxygen atom (C=O) and single-bonded to a hydrogen atom (–H). This structure is characteristic of an aldehyde.

### Step 4: Name the functional group
- Since the compound contains the CHO group, we can conclude that the functional group present in CH₃CHO is an **aldehyde**.

### Final Answer:
The functional group present in CH₃CHO is an **aldehyde**.

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