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Anti Markownikoff addition of HBr is not observed in

$\begin{array}{1 1}(a)\;\text{Propene}\\(b)\; \text{Butene}\\(c)\;\text{But-2-ene}\\(d)\;\text{Pent-2-ene}\end{array}$

1 Answer

Anti-Markownikoff's addition of HBr is observed only with unsymmetrical alkenes (i.e) propene,1-butene,pent-2-ene.As 2-butene is symmetrical so in its case anti-Markownikoff's addition will not be observed.
Hence (c) is the correct answer.
answered Mar 18, 2014 by sreemathi.v