Aliphatic aldehydes do not position isomers why ?

Explanation

### Step-by-Step Solution:

1. **Understanding Position Isomers**:
- Position isomers are a type of constitutional isomer where the same molecular formula and functional group are present, but the position of the functional group differs within the molecule.

2. **Identifying Aliphatic Aldehydes**:
- Aliphatic aldehydes have the general formula RCHO, where R represents an aliphatic hydrocarbon chain. The functional group in aldehydes is the carbonyl group (C=O) bonded to a hydrogen atom (H), making it a terminal functional group.

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