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Among the following compounds, the most acidic is
  • a)
    p-nitrophenol
  • b)
    p-hydroxybenzoic acid
  • c)
    o-hydroxybenzoic acid
  • d)
    p-toluic acid
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
Among the following compounds, the most acidic isa)p-nitrophenolb)p-hy...
Due to ortho effect o-hydroxy benzoic acid is strongest acid and correct order of decreasing Ka is
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Most Upvoted Answer
Among the following compounds, the most acidic isa)p-nitrophenolb)p-hy...

Explanation:

p-nitrophenol:
- The nitro group is an electron-withdrawing group, which stabilizes the conjugate base by withdrawing electron density. However, it is not as strong an acid as o-hydroxybenzoic acid.

p-hydroxybenzoic acid:
- The presence of the hydroxy group makes this compound slightly more acidic than p-nitrophenol, but it is still not as acidic as o-hydroxybenzoic acid.

o-hydroxybenzoic acid:
- The o-hydroxybenzoic acid has the hydroxy group in the ortho position relative to the carboxylic acid group. This arrangement allows for intramolecular hydrogen bonding between the hydroxy group and the carboxylic acid group, stabilizing the conjugate base and making it the most acidic compound among the options given.

p-toluic acid:
- The toluene group does not significantly impact the acidity of the compound compared to the other options provided.
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Among the following compounds, the most acidic isa)p-nitrophenolb)p-hydroxybenzoic acidc)o-hydroxybenzoic acidd)p-toluic acidCorrect answer is option 'C'. Can you explain this answer?
Question Description
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