Question

Compare acidic strength of acetic acid, phenol, benzoic acid and chloroacetic acid

Answer 1

chloroacetic acid in is most acidic with pH 2-3
after it is , benzonic acid have pH b/w 4-5.
and then acetic acid is weak acid ,then is phenol.

Answer 2

Answer:

The decreasing ordering of acid strength is,

$\text { Chloroacetic acid } > \text { benzoic acid } > \text { acetic acid } > \text { Phenol }$

Explanation:

Phenol exists as least acidic due to nonequivalent resonance forms in which negative charge exists delocalized over one oxygen atom and a less electronegative carbon atom.

Carboxylic acids exist as the most acidic compounds among the organic compounds.

Benzoic acid exists more acidic than acetic acid due to the resonance effect in benzoic acid.

Chloroacetic acid exists more acidic than benzoic acid due to the -I effect of the chloro group.

The decreasing ordering of acid strength stands as follows,

$\text { Chloroacetic acid } > \text { benzoic acid } > \text { acetic acid } > \text { Phenol }$.

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