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Q.12  You are given benzene, conc. H_2SO_4 and NaOH. Write the equations for the preparation of phenol using these reagents.

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When benzene reacts with conc. \:H_2SO_4  and heat it gives benzene sulphonic acid ,and after sulphonic this acid  with NaOH then it gives phenol

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HARSH KANKARIA

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