Arrange the following compounds in increasing order of their acid strength :

A. Propan - 1 - o1

B. 3 - nitrophenol

C. 3, 5 - dinitrophenol

D. Phenol

E. 4 - Methylphenol

Choose the correct answer from the options given below:

This question was previously asked in
CUET Chemistry 10th Aug 2022 Official Paper
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  1. A < B < C < D < E
  2. C < B < D < E < A
  3. A < B < D < C < E 
  4. A < E < D < B < C

Answer (Detailed Solution Below)

Option 4 : A < E < D < B < C
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Detailed Solution

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Explanation:-

  • More electron withdrawing group attached with alcohols or phenols, more will be the acidity

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​Alkyl groups show +I effect and –NO2 group show –M effect

Order of acids strength

C > B > D > E > A

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