21) Give the preparation of phenol from Chlorobenzene (Dow's process
How is phenol converted into picric acid.
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1)Dow's process:Dow's process is one of the methods of preparation of phenol. In this method chlorobenzene is heated with aq.
2)NaOH at about 623k and 300 atm. pressure to form sodium phenoxide, which is acidified by dilute acid like HCl to form phenol.
3)When phenol is heated with nitrating mixture,picric acid is obtained.
4)it's used as an explosive. This is often electrophilic substitution reaction.
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