Question

Which one is the most acidic compound ?

• A.

  

• B.

  

• C.

  

• D.

  

Answer 1

The Correct Option is C

To determine which compound is the most acidic, we need to consider the stability of the conjugate base formed after donating a hydrogen ion (H⁺). The more stable the conjugate base, the more acidic the compound.

1. For a compound to be acidic, it should ideally have a proton (H) that can be easily released.
2. The stability of the conjugate base is often increased by resonance, electronegativity, and other effects such as induction.
3. Let's analyze the structures of each compound given in the images provided to assess which one forms the most stable conjugate base after losing an H⁺.

The compound represented by the correct answer is:

4. This specific compound can stabilize its conjugate base effectively, likely due to significant resonance effects.
5. The ability to delocalize the negative charge over several atoms makes the conjugate base more stable, thus making the original compound more acidic in nature.
6. None of the other compounds depicted in the options can stabilize the conjugate base as effectively. They either lack significant resonance or the ability to delocalize the charge, making them less acidic.

Hence, the compound in the image above is the most acidic compound among the given options, due to its superior ability to stabilize the conjugate base through resonance.