Which comparison is not correct as indicated ?

Options

A.
B.
C.
D.

Answer

To solve the question, "Which comparison is not correct as indicated?" we need to analyze the comparisons provided in the video transcript regarding the acidity and basicity of different organic compounds.

### Step-by-Step Solution:

1. **Comparison of Phenol and Methanol**:
- **Phenol (C6H5OH)** is more acidic than **Methanol (CH3OH)**.
- When phenol loses a proton (H+), it forms the phenoxide ion (C6H5O-), which is stabilized by resonance. The negative charge can delocalize over the aromatic ring, making it more stable.
- In contrast, when methanol loses a proton, it forms the methoxide ion (CH3O-), which does not have resonance stabilization.
- Therefore, phenol is more acidic than methanol, making this comparison correct.

2. **Comparison of Aniline and Primary Amine**:
- **Aniline (C6H5NH2)** has a lone pair on the nitrogen that is delocalized into the aromatic ring, making it less available for protonation compared to **Primary Amine (like CH3NH2)**, where the lone pair is localized and more available for donation.
- Thus, primary amines are generally stronger bases than aniline. This comparison is also correct.

3. **Comparison of Benzoyl Cation and Other Cations**:
- The stability of cations is influenced by resonance and hyperconjugation. The benzoyl cation (C6H5C+) is stabilized by resonance, while other cations may rely on hyperconjugation.
- The statement that resonance is a more powerful stabilizing factor than hyperconjugation is correct.

4. **Comparison of Benzoic Acid and Acetic Acid**:
- **Benzoic Acid (C6H5COOH)** is more acidic than **Acetic Acid (CH3COOH)**. The presence of the phenyl ring in benzoic acid allows for greater resonance stabilization of the carboxylate ion (C6H5COO-) compared to the acetate ion (CH3COO-).
- The comparison that benzoic acid is more acidic than acetic acid is correct.

### Conclusion:
After analyzing all the comparisons, it appears that all comparisons made in the video transcript are correct. Therefore, if the question is asking for which comparison is not correct, we conclude that the question may be misleading or that there is no incorrect comparison indicated in the provided options.