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The decreasing order of acidic character...

The decreasing order of acidic character of the following is:
(I) `Ph-overset(O)overset(||)(C)-NH_(2)` (II) (III) `PhNH_(2)`

A

`II gt I gt III`

B

`III gt I gt II`

C

`II gt III gt I`

D

`I gt III gt II`

Text Solution

Verified by Experts

The correct Answer is:
A
Due to two `bar e`-withdraw `(C=O)` groups in (II), it is more acidic than (I) (one EW `(C=O)` group). Moreover, (II) is much more resonance stabilised than (I).
(II)
(I)
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