Which one is the correct order of acidity?

Options

A. `CH_(2)-CH_(3) gt CH_(3)=CH_(2) gt C-=CH gt CH=CH`
B. `CH_(2)=CH_(2) gt CH_(3)-CH= CH_(2) gt CH_(3)-C-=CH gt CH-=CH`
C. `CH=CH gt CH_(3)-C-=CH gt CH_(2) =CH_(2) gt CH_(3)-CH_(2)`
D. `CH-=CH gt CH_(2)= CH_(2) gt CH_(3)-C-= CH gt CH_(3)-CH)_(3)`

Explanation

To determine the correct order of acidity among hydrocarbons, we need to analyze the hybridization of the carbon atoms involved in the bonds. The acidity of a compound is influenced by the ability of the compound to donate protons (H+ ions), which is related to the hybridization of the carbon atoms and the percentage of s-character in the hybrid orbitals.

### Step-by-Step Solution:

1. **Understanding Acidity**: Acidity refers to the ability of a compound to donate protons (H+ ions). The more easily a compound can donate a proton, the stronger the acid it is.

2. **Hybridization and s-character**: The acidity of hydrocarbons is influenced by the hybridization of carbon atoms:
- **sp hybridization**: 50% s-character
- **sp² hybridization**: 33.33% s-character
- **sp³ hybridization**: 25% s-character

3. **Comparing s-character**: The greater the s-character, the stronger the acid. This is because higher s-character means that the electrons are held closer to the nucleus, making it easier to release the H+ ion:
- Triple bond (sp) > Double bond (sp²) > Single bond (sp³)

4. **Order of Acidity**: Based on the s-character:
- **Triple bond (sp)** has the highest acidity.
- **Double bond (sp²)** has moderate acidity.
- **Single bond (sp³)** has the lowest acidity.

5. **Conclusion**: The correct order of acidity from highest to lowest is:
- **Triple bond > Double bond > Single bond**

### Final Answer:
The correct order of acidity is: **Triple bond > Double bond > Single bond**.