Arrange the following compounds in increasing reactivity with CH3ONa.
A
I<II<III
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B
III<II<I
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C
II<III<I
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D
I<III<II
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Solution
The correct option is DI<III<II Nucleophilic substitution will take place more readily where δ+ charge is more or centre having less electron density. −NO2 is strong electron withdrawing group. It show -M effect when present at ortho or para position. It only exhibits -I effect at meta position.
Hence the reactivity follows the order: