A mixture of benzene and benzoic acid is separated by which of the following reagent?

Toluene

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N a H C O_{3}

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H C l

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Diethyl ether

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Solution

The correct option is B $N a H C O_{3}$
A mixture of benzene and benzoic acid is separated by sodium hydrogen carbonate $N a H C O_{3}$ .
Benzene is a aromatic hydrocarbon. It does not react with sodium hydrogen carbonate.
Benzoic acid is a carboxylic acid. It reacts with sodium hydrogen carbonate to form water soluble salt.
$P h - C O O H + N a H C O_{3} \to P h - C O O^{-} N a^{+} + H_{2} O + C O_{2}$ .

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