Phenol and carboxylic acid can be distinguished by the reagent

N a

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N a H {C O}_{3}

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Both (a) and (b)

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None of these

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Solution

The correct option is B $N a H {C O}_{3}$
Phenol and carboxylic acid can be distinguished by sodium bicarbonate $N a H {C O}_{3}$ . Carboxylic acid reacts with $N a H {C O}_{3}$ to give effervescence due to evolution of ${C O}_{@}$ while phenol does not give effervescence.
$R C O O H + N a H {C O}_{3} ⟶ R C O O N a + H_{2} O + {C O}_{2}$

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N a H C O_{3}

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