Question
Write down the mechanism for dehydration of excess of Ethanol with conc. H₂SO₄ at 140°C.
Write down the mechanism for dehydration of excess of Ethanol with conc. H₂SO₄ at 140°C.
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Acidity of Water, Phenol, and Ethanol
Use the extent of ionization and the acid dissociation constant, Ka to distinguish between strong and weak acids.
Recall the chemistry of phenol, as exemplified by the following reactions: a. with bases, for example NaOH (aq) to produce sodium phenoxide b. with Na(s) to produce sodium phenoxide and H2(g) c. in NaOH(aq) with diazonium salts to give azo compounds. d. nitration of the aromatic ring with dilute HNO3,(ag) at room temperature to give a mixture of 2-nitrophenol and 4-nitrophenol e. bromination of the aromatic ring. with Br2(aq) to form 2,4,6- tribromophenol.