Question: one among the following compounds will not give effervescence with sodium carbonate?
Answer: Which among the following compounds will not give effervescence with sodium bicarbonate ? Solution : Phenol does not react with NaHCO3 or NaCO3. Although picric acid is a phenolic compound (2,4,6-trinitrophenol), due to the presence of 3NaO2 groups (EWG), it is highly acidic and reacts with NaHCO3 or NaCO3.