phenol is insoluble in NNAHCO3 solution while acetic acid is soluble.give reason.

2 answers

Carboxylic acids are strong enough acids to react with NaHCO3 or with NaOH. Acetic acid is a carboxylic acid.

Phenol will react with NaOH but not NaHCO3 because it is too weak.
In fact, that is a test in organic chemistry to determine if it is a carboxylic acid or not. Extract with NaOH and you get all of the acids. Extract with NaHCO3 and you get the carboxylic acids but not the other weaker organic acids.
acetic acid is strong enugh to react with NAHCO3 while phenol is not soluble in NAHCO3..because it is weaker acid
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