Among the following, total number of meta directing functional groups is:

, , , , , , , ,

Question

Among the following, total number of meta directing functional groups is:

, , , , , , , ,

Canvas Classes · Accepted Answer

Step 1: Identifying Meta Directing Groups
Meta-directing groups are those that are electron-withdrawing by resonance () and inductive effects ().
From the list, these are:
1.  (Nitro)
2.  (Cyano)
3.  (Acyl)
4.  (Carboxyl)

Step 2: Identifying Ortho/Para Directing Groups
Groups like  have lone pairs or inductive effects that activate the  positions (or are  directing deactivators like ).
Total count = 4.

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