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Identify the correct order of reactivity in electrophilic substitution action of the following compounds.

 

$ (a)\;1 > 2 > 3 >4 \\ (b)\;4 > 3 > 2 >1 \\ (c)\;2 > 1 > 3 >4 \\ (d)\;2 > 3 > 1 >4 $
Can you answer this question?
 
 

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The correct answer is :
$-CH_3$ is an activating group because $+I$ effect, $-cl$ and $-NO_2$ are deactivating due to their $-I$ and $-M$ effect.
$\therefore $ the option is $2 > 1 > 3 >4 $
Hence c is the correct answer.
answered Feb 22, 2014 by meena.p
 

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