Decarboxylation of all six possible forms of diaminobenzoic acids C 6 H 3 NH 2 2 COOH yields three products A , B and C . Three acids give a product ' A ', two acids gives a product ' B

Question

Decarboxylation of all six possible forms of diaminobenzoic acids C 6 H 3 NH 2 2 COOH yields three products A , B and C . Three acids give a product ' A ', two acids gives a product ' B ' and one acid give a product ' C '. The melting point of product ' C ' is

TestHub · Accepted Answer

C is a para isomer.

The melting point of para-isomer is comparatively higher than the corresponding ortho and meta-isomers , because of more symmetrical nature; it fits into crystal lattice more readily and so, close packing of molecules in crystal lattice increases the intermolecular force of attraction between molecules.

Hence $(C)$ has highest melting point that is $142 ° C$

Chemistry - Carboxylic acid and their Derivatives Question with Solution | TestHub

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