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Question
In which of following molecules, π - electron density in ring is minimum?
In which of following molecules, π - electron density in ring is minimum?
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Solution
The correct option is D
NO2 group produces −M effect, i.e., electron density decreases in the ring. −OCH3 and −NH2 groups produces +M effect, i.e., electron density increases in the ring.
In option D, two NO2 groups are present. At meta position it will produce −I effect which will also lead to decrease in electron density of the ring.
NO2 group produces −M effect, i.e., electron density decreases in the ring. −OCH3 and −NH2 groups produces +M effect, i.e., electron density increases in the ring.
In option D, two NO2 groups are present. At meta position it will produce −I effect which will also lead to decrease in electron density of the ring.
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