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Question

In the compounds shown above, the correct order of acidity is :
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  1. IV > III > I > II
  2. I > IV > III > II
  3. II > IV > I > II
  4. II > I > III > IV

A
IV > III > I > II
B
II > IV > I > II
C
I > IV > III > II
D
II > I > III > IV
Solution
Verified by Toppr

CH3 is an activating group and hence decreases acidity of phenol.

NO2 is a deactivating group and hence increases acidity of phenol.

Para positions are more effective than meta positions.

Hence, reactivity is IV>III>I>II.

Option D is correct.

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