Question

why No2 is meta directer​

Answer 1

Use these results to state whether -NO2 is an ortho-para directing substituent or a meta- directing substituent for electrophilic aromatic

Answer 2

Hey Mate here is your Ans.

Since NO2 is an electron withdrawing group, a glance at the resonance structures shows that the positive charge becomes concentrated at the ortho-para positions. Thus these positions are deactivated towards electrophilic aromatic substitution. Hence, NO2 is a meta-director, as we all learned in organic chemistry.

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