Which of the following alkenes will show maximum number of hyperconjugation forms?

Options

A. `CH_(2)=CH_(2)`
B. `CH_(3)-CH=CH_(2)`
C. `CH_(3)-CH_(2)-CH=CH_(2)`
D. `CH_(3)-overset(CH_(3))overset(|)(CH)-CH=CH_(2)`

Explanation

To determine which alkene will show the maximum number of hyperconjugation forms, we need to analyze the number of alpha-hydrogens present in each alkene. Hyperconjugation occurs when there are hydrogen atoms on the carbon atoms adjacent (alpha) to the double bond, as these hydrogens can interact with the empty p-orbital of the double bond.

### Step-by-Step Solution:

1. **Identify the Alkenes**: List the alkenes provided in the question. For this example, let's assume we have four alkenes labeled A, B, C, and D.

2. **Determine the Structure**: Draw the structural formulas for each alkene to visualize the arrangement of carbon and hydrogen atoms.

3. **Count Alpha-Hydrogens**:
- **Alkene A**: Check the carbons adjacent to the double bond. If there are no carbons attached to the double bond, it will have zero alpha-hydrogens.
- **Alkene B**: Identify the alpha-carbons and count the hydrogens attached to them. For example, if there are three hydrogens on one alpha-carbon and two on another, that totals five alpha-hydrogens.
- **Alkene C**: Repeat the process. For instance, if there is one hydrogen on one alpha-carbon and two on another, that totals three alpha-hydrogens.
- **Alkene D**: Count the alpha-hydrogens similarly.

4. **Compare the Counts**: After counting the alpha-hydrogens for each alkene, compare the totals:
- Alkene A: 0 alpha-hydrogens
- Alkene B: 5 alpha-hydrogens
- Alkene C: 3 alpha-hydrogens
- Alkene D: 2 alpha-hydrogens

5. **Identify the Maximum**: The alkene with the highest number of alpha-hydrogens will show the maximum number of hyperconjugation forms. In this case, Alkene B has the most alpha-hydrogens.

6. **Conclusion**: Therefore, the alkene that will show the maximum number of hyperconjugation forms is **Alkene B**.

### Final Answer:
**Alkene B will show the maximum number of hyperconjugation forms.**