For an electrophilic substitution reaction, the presence of a halogen atom in the benzene ring _______.
(i) Deactivates the ring by inductive effect
(ii) Deactivates the ring by resonance
(iii) Increases the charge density at ortho and para position relative to meta position by resonance
(iv) Directs the incoming electrophile to meta position by increasing the charge density relative to ortho and para position.
For an electrophilic substitution reaction, the presence of a halogen atom in the benzene ring _______.
(i) Deactivates the ring by inductive effect
(ii) Deactivates the ring by resonance
(iii) Increases the charge density at ortho and para position relative to meta position by resonance
(iv) Directs the incoming electrophile to meta position by increasing the charge density relative to ortho and para position.
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1 Answer
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This is a multiple choice answer as classified in NCERT Exemplar
(i) & (iii)
The halogens atom weakly deactivate the ring due to the -I effect and directs the incoming group to the ortho and para position due to the +R effect.
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