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Arrange the following compounds in order of decreasing acidity:

Option: 1

\mathrm{IV>III>I>II}


Option: 2

\mathrm{I>III>II>IV}


Option: 3

\mathrm{I>II>III>IV}


Option: 4

\mathrm{III>I>II>IV}


Answers (1)

best_answer

Electron withdrawing group like \mathrm{-NO_{2}, \: -Cl} increase the acidity of phenol while electron releasing group like \mathrm{-CH_{3}, \: -OCH_{3}} decreases acidity.

Thus \mathrm{III>I>II>IV} is the correct order of acidic strength

Hence, the correct answer is Option (4)

Posted by

seema garhwal

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