Which of the following alkenes does not exhib | vedclass

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(A) Markownikoff's rule is applicable only to unsymmetrical alkenes, where the negative part of the addendum attaches to the carbon atom with fewer hy

Vedclass · Accepted Answer

$CH_2 = CH_2$

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(A) Markownikoff's rule is applicable only to unsymmetrical alkenes, where the negative part of the addendum attaches to the carbon atom with fewer hydrogen atoms. $(1)$ $CH_2 = CH_2$ (Ethene) is a symmetrical alkene. $(2)$ $CH_3 - CH_2 - CH = CH - CH_3$ (Pent$-2-$ene) is an unsymmetrical alkene. $(3)$ $CH_3 - CH = CH_2$ (Propene) is an unsymmetrical alkene. $(4)$ $CH_3 - CH_2 - CH = CH_2$ (But$-1-$ene) is an unsymmetrical alkene. Since $CH_2 = CH_2$ is a symmetrical alkene, it does not show regioselectivity and thus does not follow Markownikoff's rule.

Which of the following alkenes does not exhibit regioselectivity according to $M.K.$ (Markownikoff's) rule?

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