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Arrange in decreasing order of reactivity with HCl


$\begin{array}{1 1}(A)\; 2 > 3 > 1\\(B)\; 3 > 2 > 1\\(C)\; 3 > 1 > 2\\(D) \;None \;of\; the\; above\end{array}$

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3 pushes the electrons through –I effect and increases the electron density at vinylic carbon while Nitro group withdraws electrons by the deactivating effect and is least reactive
Hence (B) is the correct answer.
answered Dec 2, 2013 by sreemathi.v
edited Sep 4, 2014 by sreemathi.v

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