But 1 ene and but 2 ene are the example of

Options

A. chain isomerism
B. position isomerism
C. functional isomerism
D. butane

Answer

To solve the question regarding but-1-ene and but-2-ene, we will analyze the structures and characteristics of these compounds step by step.

### Step-by-Step Solution:

1. **Identify the Compounds**:
- But-1-ene (or 1-butene) has the structure: CH3-CH2-CH=CH2.
- But-2-ene (or 2-butene) has the structure: CH3-CH=CH-CH3.

2. **Determine the Molecular Formula**:
- Both but-1-ene and but-2-ene have the same molecular formula: C4H8.

3. **Analyze the Position of the Double Bond**:
- In but-1-ene, the double bond is located between the first and second carbon atoms.
- In but-2-ene, the double bond is located between the second and third carbon atoms.

4. **Classify the Type of Isomerism**:
- Since both compounds have the same molecular formula but differ in the position of the double bond, they are classified as positional isomers.

5. **Conclusion**:
- But-1-ene and but-2-ene are examples of positional isomers.

### Final Answer:
But-1-ene and but-2-ene are examples of positional isomerism.

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