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phenol------>A+h2o what is the product formed when phenol is heated in the presence of H3PO4 ?

phenol------>A+h2o
what is the product formed when phenol is heated in the presence of H3PO4 ? 
 
 
 

Grade:11

2 Answers

Aastha
14 Points
5 years ago
Benzene ring will be formed as h3po2 with water will remove the oh group from the compound. Also whenever H3PO2 is used remeber that only benezene will be left as a product
Rajdeep
231 Points
5 years ago
HELLO THERE!
 
Note: Acid is a source of Hydrogen ion (H+).
 
Here, we are using Phosphoric acid on Phenol (C6H5OH).
 
The mechanism is that, the H+ ion generated by the acid attacks the OH group and takes it out, forming water.
H+ + OH- ----> H2O
 
Thus, benzene will be formed as a product.
 
Also, if you add Zinc dust (and heat) to phenol, we get benzene.
 
THANKS!

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