KCET · Chemistry · Haloalkanes and Haloarenes
In electrophilic aromatic substitution reaction, the nitro group is meta directing because it
- A decreases electron density at ortho and para positions
- B decreases electron density at meta position
- C increases electron density at meta position
- D increases electron density at ortho and para positions
Answer & Solution
Correct Answer
(A) decreases electron density at ortho and para positions
Step-by-step Solution
Detailed explanation
When nitro group is present in the benzene nucleus, it withdraws electrons from \(o\) and \(p\)-positions. Thus, the electron density at the \(o\) and \(p\)-positions decreases. \(m\)-positions become positions of comparatively higher electron density and therefore, electrophilic attack occurs at \(m\)-positions.
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