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Question
Arrange in decreasing order of basicity:
Arrange in decreasing order of basicity:
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Solution
The correct option is C 1>2>3>4
Structure 1 is aliphatic amine which is more basic than aromatic amine. So (1) is greater than (2). In between (3) and (4), (3) is more basic because it contains −NO2 at para position which shows both -I and -R effect while in (4) it contains two NO2 groups.
Structure 1 is aliphatic amine which is more basic than aromatic amine. So (1) is greater than (2). In between (3) and (4), (3) is more basic because it contains −NO2 at para position which shows both -I and -R effect while in (4) it contains two NO2 groups.
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