Mark the correct order of decreasing acid strength of the following compounds. 

I. e > d > b > a > c

 

II. b > d > a > c > e

 

III. d > e > c > b > a

 

IV. e > d > c > b > a 

<p><span data-teams="true">This is a multiple choice answer as classified in NCERT Exemplar</span></p><p> (II) b &gt; d &gt; a &gt; c &gt; e&nbsp;</p><p>The acidic strength decreases with increasing stability of the conjugate base of the given alcohol. -NO₂ group at the para position in compound (b) is the most acidic due to the -M effect of the -NO₂ group.</p><p>Compound (d) has -I effect on the conjugate base, whereas the -OCH₃ group has + M effect on the conjugate base and hence decreases the acidity of compounds (c) and (e).</p>

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