Phenol xrightarrow{NaNO_2/H_2SO_4} B xrightar | vedclass

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Question

(A) The reaction sequence given is the characteristic test for phenols known as $Liebermann's \ nitroso \ reaction$. In this reaction,phenol reacts wi

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Liebermann's nitroso reaction

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(A) The reaction sequence given is the characteristic test for phenols known as $Liebermann's \ nitroso \ reaction$. In this reaction,phenol reacts with $NaNO_2$ and $H_2SO_4$ to form $p-nitrosophenol$ $(B)$,which further reacts with another molecule of phenol in the presence of $H_2SO_4$ to form an indophenol dye $(C)$. Upon adding $NaOH$,the solution turns deep blue or green due to the formation of the sodium salt of the indophenol $(D)$.

Phenol $\xrightarrow{NaNO_2/H_2SO_4} B$ $\xrightarrow{H_2O} C$ $\xrightarrow{NaOH} D$. The name of the above reaction is:

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