Organic Chemistry Some Basic Principles and Techniques - Result Question 61
####67. $A$ is a lighter phenol and $B$ is an aromatic carboxylic acid. Separation of a mixture of $A$ and $B$ can be carried out easily by using a solution of
[1992]
(a) Sodium hydroxide
(b) Sodium sulphate
(c) calcium chloride
(d) Sodiumbicarbonate
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Solution:
- (d) Carboxylic acids dissolve in $NaHCO_3$ and evolve $CO_2$ gas but phenols do not.
$RCOOH \xrightarrow{NaHCO_3} RCOONa+H_2 O+CO_2$
