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Questions  

The decreasing order of acidic characters of the following is:

I. p-Nitrophenol            II. o-Nitrophenol
III. m-Nitrophenol         IV. Phenol

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By Expert Faculty of Sri Chaitanya
a
I > II > III > IV
b
II > I > III > IV
c
I > II > IV > III
d
II > I > IV > III

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detailed solution

Correct option is A

Minus I effect increases the order of acidity. The minus I group leads to the easy cleavage of O-H bond.
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Similar Questions

In how many of the following the first one is more acidic than second one.

(1) (I) o -methyl benzoic acid ;(II) benzoic acid

(2) (I) o-methyl benzoic acid ;(II) o - hydroxy benzoic acid

(3) (I) m -chloro phenol ; (II) p -chloro phenol

(4) (I) p -chloro phenol ; (II) p - floro phenol

(5) (I) Phenol ; (II) Acetic acid

(6) (I) Formic acid ;(II) Benzoic acid

(7) (I) Benzoic acid; (II) Acetic acid 

(8) (I)Phenol; (II) Carbonic acid

(9) (I) Acetic acid (II) Carbonic acid

 

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