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Solution


Q.

The correct order for acidity of the following hydroxyl compound is:

Choose the correct answer from the options given below:                      [2023]
1 D > E > C > A > B  
2 C > E > D > B > A  
3 E > C > D > A > B  
4 E > D > C > B > A  

Ans.

(3)

Greater the stability of conjugate base, greater the acidity.

For phenols, −M group (−NO2) present at para position stabilizes the conjugate base, whereas hyperconjugation of −CH3 decreases the stability.

Hence the correct order is E > C > D > A > B.