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Highly branched carboxylic acids are...

Highly branched carboxylic acids are less acidie than unbranched acids . Why ?

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The carboxylate ion `(RCOO^(-))` of branched chain acids is shielded from solvent molecules and therefore , cannot be stablilized by solvation as effectively as the carboxylate ion of unbreanched acids .
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Carboxyllic Acid

Carbolic acid is less acidic than:

Statement 1 : Maleic acid is more acidic than fumaric acid Statement 2 : Highly branched acids are less acidic than unbranched acids.

Explain the following : (a) Highly branched acids such as are less acidic than unbranched acids. (b) K_(a_1) for maleic acid is greater than that for fumaric acid or pK_(a_1) for maleic acid is less than that for fumaric acid. ( c) K_(a_2) for fumaric acid is greater than that for maleic acid or pK_(a_2) for fumaric acid is less than that for maleic acid. (d) Phthalic acid is a stronger acid than either isophthalic or terephthalic acids but phthalate monoanion is weaker than isophthalate and terephthalate monoanions. ( e) o- Nitro benzoic acid (pK_a = 2.21) is stronger acid than 3,5- dinitrobenzoic acid (pK_a = 2.80) but weaker than 2,4- dinitro benzene acid in water.

Carboxylic acid (A) is: