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write a reaction in which phenols exhibit acidic nature. explain why phenols are more acidic than alcohol. out of 2-nitrophenol and 4-nitrophenol, which is steam volatile and why?

write a reaction in which phenols exhibit acidic nature. explain why phenols are more acidic than alcohol. out of 2-nitrophenol and 4-nitrophenol, which is steam volatile and why?

Grade:12

1 Answers

Arun
25750 Points
5 years ago

The acidic nature of phenol can be represented by the following two reactions:

(i) Phenol reacts with sodium to give sodium phenoxide, liberating H2.

(ii) Phenol reacts with sodium hydroxide to give sodium phenoxide and water as by-products.

 

The acidity of phenol is more than that of ethanol. This is because after losing a proton, the phenoxide ion undergoes resonance and gets stabilized whereas ethoxide ion does not.

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