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  4. Aqueous solution of sodium bicarbonate can fairly be useful to distinguish aliphatic carboxylic acid from

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Q. Aqueous solution of sodium bicarbonate can fairly be useful to distinguish aliphatic carboxylic acid from

Haryana PMTHaryana PMT 2011

Solution:

Benzoic acid, oxalic acid and picric acid are sufficient acidic to evolve $CO _{2}$ but $3$-methoxy phenol is comparatively less acidic hence it does not evolve $CO _{2}$ with $NaHCO _{3}$.