Consider the following compound and identify the false statement about it.
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a
-NH2 group in this compound exhibits both - I and + M effects
b
It is a pleasant smelling compound
c
It is a weaker base than Ammonia in aqueous solution
d
It turns reddish brown on atmospheric oxidation
answer is B.
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Detailed Solution
The compound is Aniline;-NH2 group is attached to conjugated system. Lone pair is in conjugation with pi bonds. Thus it shows + M effect.Nitrogen is more electronegative than sp2 carbon. Thus it shows - I effect.Aniline has fishy odour.Due to resonance , lone pair is less available for donation. Thus Aniline is less basic than Ammonia.Aniline is highly susceptible to atmospheric oxidation and turns reddish brown.