Acetone and acetaldehyde are

Options

A. Position isomers
B. Functional isomers
C. Not isomers
D. Chain isomers

Answer

To solve the question regarding acetone and acetaldehyde, we need to identify the relationship between these two compounds. Here’s a step-by-step breakdown of the solution:

### Step 1: Identify the Structures
- **Acetone (C3H6O)**: The structure is CH3-C(=O)-CH3. It is a ketone because the carbonyl group (C=O) is located between two carbon atoms.
- **Acetaldehyde (C2H4O)**: The structure is CH3-C(=O)-H. It is an aldehyde because the carbonyl group (C=O) is at the end of the carbon chain.

### Step 2: Determine the Type of Isomerism
- **Functional Isomers**: These are compounds that have the same molecular formula but different functional groups. Acetone and acetaldehyde both have the molecular formula C3H6O but differ in their functional groups (ketone vs. aldehyde).

### Step 3: Analyze the Options
- **Option 1**: Not isomers - Incorrect, as they are indeed isomers.
- **Option 2**: Functional isomers - Correct, as they differ in functional groups.
- **Option 3**: Chain isomers - Incorrect, as chain isomers differ in the arrangement of the carbon skeleton.
- **Option 4**: Positional isomers - Incorrect, as positional isomers differ in the position of the functional group on the same carbon skeleton.

### Conclusion
The correct answer is that acetone and acetaldehyde are **functional isomers**.

### Final Answer
**Acetone and acetaldehyde are functional isomers.**

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