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:

  1. (d) Carboxylic acids dissolve in NaHCO3 and evolve CO2 gas but phenols do not.

RCOOHNaHCO3RCOONa+H2O+CO2



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