What is the order of stability for I. 1-butene; II cis-2-butene; III. trans-2-butene?
A
I < II < III
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B
I > II > III
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C
III > I > II
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D
I > II < III
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Solution
The correct option is A I < II < III stability of alkene is judge by no. of α−hydrogens.More the no. α−hydrogen more the will be hyperconjuction more will be stability of alkene. cisalkene is less stable than trans alkene so order of stablity is (i)<(ii)<(iii)