Alcohols Phenols and Ethers - Result Question 41

####42. Consider the following phenols:

The decreasing order of acidity of the above phenols is

[1999]

(a) III > IV > II > I

(b) II > I > IV > III

(c) I > IV > II > III

(d) III > IV > I > II

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Solution:

  1. (a) Electron withdrawing group (NO2) increases the acidity while electron releasing group (CH3,H) decreases acidity. Also effect will be more if functional group is present at para position than ortho and meta position.


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