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QJEEM13Ch9c93: JEE Main 2013 Chemistry - Class 12 JEEM13Ch9c93 Solution: Arrange the following compounds in order of decreasing acidity :

Arrange the following compounds in order of decreasing acidity :

JEE Main 2013 (Offline) Chemistry - Alcohols, Phenols and Ethers Question 145 English

Multiple Choice Options

  • A III>I>II>IV
  • B II>IV>I>III
  • C I>II>III>IV
  • D IV>III>I>II

Step-by-Step Verified Solution

Electron withdrawing substituents like −NO2,Cl increase the acidity of phenol while electron releasing substituents like −CH3,−OCH3 decreases acidity.
Hence the correct order of acidity will be

JEE Main 2013 (Offline) Chemistry - Alcohols, Phenols and Ethers Question 145 English Explanation

Further (−I)NO2>(−I)Cl and (+I)CH3>(+I)OCH3

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