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How is phenol prepared form (i) chloro benzene (ii) isopropyl benzene |
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Answer» Solution :(i) From Chloro BENZENE: According to Dow.s process, when Chlorobenzene is hydrolysed with 6 8% NaOHat 300 BAR and 633K in a closed vessel, sodium phenoxide is formed which on TREATMENT with dilute HCl gives phenol.  (ii) For isopropyl benzene: On passing air to a mixture of CUMENE (isoprophy benzene) and 5% aqueous sodium carbonate solution, cumene hydro peroxide is formed by oxidation. It is treated with diluteacid to get phenol and ACETONE. 
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