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  • The acidic hydrolysis of ether [x] shown below is fastest when : <div

The acidic hydrolysis of ether [x] shown below is fastest when :

Option: 1

One phenyl group is replaced by a methyl group


Option: 2

One phenyl group is replaced by a p-methoxyphenyl group


Option: 3

Two phenyl groups are replaced by two P-methoxyphenyl groups


Option: 4

No structural change is made to x


Answers (1)

best_answer

As we learned

 

Order of reactivity of halogen acids -

HI>HBr>HCl

- wherein

ROR'+HX\rightarrow ROH+R'X

 

 When two phenyl groups are replaced by two p - methoxyphenyl groups, carbocation formed will be more stable. As the stability of carbocation formed increases, rate of acidic hydrolysis increases.

Hence, the option number (3) is correct.

Posted by

Sanket Gandhi

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