Q28 of 110 Page 344

Write the equation of the reaction of hydrogen iodide with:

methoxybenzene and

Methoxybenzene reacts with hydrogen iodide to give phenol and iodomethane.



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27

Preparation of ethers by acid dehydration of secondary or tertiary alcohols is not a suitable method. Give reason.

 28

Write the equation of the reaction of hydrogen iodide with:

1-propoxypropane

 28

Write the equation of the reaction of hydrogen iodide with:

benzyl ethyl ether.

 29

Explain the fact that in aryl alkyl ethers (i) the alkoxy group activates the benzene ring towards electrophilic substitution and (ii) it directs the incoming substituents to ortho and para positions in the benzene ring.