Identify the correct order of reactivity in electrophilic substitution reaction of the following compounds 1: Benzene 2: Nitrobenzene (NO2 at top) 3: Chlorobenzene (Cl at top) 4: Phenol (OH at top)

Question

Identify the correct order of reactivity in electrophilic substitution reaction of the following compounds

1: Benzene
2: Nitrobenzene (NO2 at top)
3: Chlorobenzene (Cl at top)
4: Phenol (OH at top)

Prashant Kotian · Accepted Answer

Correct answer: D. OH  strongly activating group because of +R effect. Cl  weakly deactivating group because of I effect. NO2  strongly deactivating group because of R effect and I effect. So, 4 > 1 > 3 > 2.

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