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Arrange the following alkenes in the increasing order of their heat of hydrogenation

$\begin{array}{1 1}1. 2-methylbutene&2.Cis-2pentene\\3. 3-methylbutene&\qquad\end{array}$.

$\begin{array}{1 1}a)\; 1 < 2 < 3\\b)\;2 < 1 < 3\\c)\; 3 < 1 < 2\\d)\;3 < 2 < 1\end{array}$

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The more substituted alkene will have lesser heats of hydrogenation
Hence (b) is the correct answer.
answered Dec 3, 2013 by sreemathi.v

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