The increasing order of the reactivity of the following compounds

towards electrophilic aromatic substitution reactions is:

  • Option 1)

    II < I < III

  • Option 2)

    III < II < I

  • Option 3)

    III < I < II

  • Option 4)

    I < III < II

Answers (1)

Rateof electrophillic aromatic substitution is as follows : 

>  >

\ast CH_3 will activate the ring by hyperconjugation & (+I) effect.

\ast Cl will slightly deactivate the ring because of its (-I) effect.

\ast OCH_3 will highly deactivate the ring because of its (-M) effect.

\therefore Option (3) is correct.

 


Option 1)

II < I < III

Option 2)

III < II < I

Option 3)

III < I < II

Option 4)

I < III < II

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