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Arrange the following compounds in their...

Arrange the following compounds in their increasing stability and explain the reason : 2-butene , propene ,2-methylbut -2-ene.

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The order of increasing stability of the given alkene is p ropene `lt` 2-butene `lt` 2-methylbut -2-ene .
Number of hyperconjugable hydrogen in propene ,2- butene and 2-methylbut-2-ene molecules are 3,6 and 12 respectively. With increase in number of hyper conjugable hydrogen , stability due to hyperconjugative effect of the molecule increases.
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