1.

The compound that does NOT liberate CO2, on treatment with aqueous sodium bicarbonate solution, is (A) Benzoic acid (B) Benzenesulphonic acid (C) Salicylic acid (D) Carbolic acid (Phenol)

Answer»

(D) Carbolic acid (Phenol)

pKa of PhOH (carbolic acid) is 9.98 and that of carbonic acid (H2CO3) is 6.63 thus phenol does not give effervescence with HCO\(^-_3\) ion.



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