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Organic Compounds

Arrange in de...

Question

Arrange in decreasing order of basicity:

A

1>3>4>2

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B

4>3>2>1

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C

1>2>3>4

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D

4>1>3>2

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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 $- N O_{2}$ at para position which shows both -I and -R effect while in (4) it contains two $N O_{2}$ groups.

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Organic Compounds

Standard XII Chemistry

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