Compound(s) which will liberate carbon dioxide with sodium bicarbonate solution is /are:
Option: 1 B and C only
Option: 2 C only
Option: 3 B only
Option: 4 A and B only
Compounds that are more acidic then H2CO3, gives CO2 gas on reaction with NaHCO3.
Compound B i.e. Benzoic acid and compound C i.e. picric acid both are more acidic than H2CO3.
So, B and C only will liberate carbon dioxide with sodium bicarbonate solution.
Therefore, Option 1 is correct.
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