Give the increasing order of reactivity among the following compounds towards
aromatic electrophilic substitution. Also give explanation for your order.
a Phenol b Aniline c Benzene d Nitrobenzene e Benzaldehyde
Answers
Answer:
I>II>III
The correct order of reactivity towards the electrophilic substitution of the compounds aniline (I) Benzene (II) Nitrobenzene (III) is $$I > II > III$ $. In aniline, the amino group increases the electron density on the benzene ring and increases the reactivity towards electrophilic aromatic substitution reaction. In nitrobenzene, the electron withdrawing nitro group decreases the electron density of benzene ring and deactivates the ring towards electrophilic aromatic substitution reaction.
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Compound A is
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Assertion
Nitrobenzene does not undergo Friedel-Craft's reaction.
Reason
Nitrogroup is a deactivating group.
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