Write chemical reaction of preparation of phenol from chlorobenzene.
Chlorobenzene is heated with 6 to 8% solution of NaOH to about 623 K under a pressure of 300 atmospheres to form sodium phenate which upon acidification with dilute HCl gives phenol as follows:
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242.
Write the mechanism of hydration of ethene to yield ethanol.
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243.You are given benzene, conc. H2SO4 and NaOH. Write the equations for the preparation of phenol. Write the equations for the preparation of phenol using these reagents.
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244.Show how will you synthesize:
1-phenylethanol from a suitable alkene.
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245.Show how will you synthesize: cyclohexylethanol using an alkyl halide by an SN2 reaction.
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246.Show how will you synthesize: Pentan-1-ol using a suitable alkyl halide?
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Long Answer Type
247.
Give two reactions that show the acidic nature of phenol. Compare acidity of phenol with that of control?
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Short Answer Type
248.Explain how does the —OH group attached to a carbon of benzene ring activate it towards electrophilic substitution?
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249.Give equations of the following reactions: Oxidation of propan-1-ol with alkaline KMnO4 solution.
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