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Question

Among the following, the strongest base is: 


A
C6H5NH2
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B
pNO2C6H4NH2
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C
mNO2C6H4NH2
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D
C6H5CH2NH2
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Solution

The correct option is B $$\displaystyle { C }_{ 6 }{ H }_{ 5 }{ CH }_{ 2 }{ NH }_{ 2 }$$
(D) is an aliphatic amine; so it is stronger base than aromatic amine. 

Moreover, EWG $$( -{ NO }_{ 2 } )$$ at o, p and m-positions decreases the basic character. 

The basicity order is:
$$\displaystyle (D)>(A)>(C)>(B)$$.

Option D is correct.

Chemistry

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