Write the stability order of above four alkenes.

I > I I > I I I > I V

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I > I I I > I I > I V

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I I I > I I > I > I V

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I > I I > I V > I I I

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Solution

The correct option is A $I > I I I > I I > I V$
The stability of alkenes here, depends on the hyperconjugation.

I - Alkene has $10$ hyperconjugating structures and is a cyclic alkene.
II - Alkene has $6$ hyperconjugating structures.
III - Alkene has $9$ hyperconjugating structures.
IV - Alkene has no hyperconjugating structure.

Hence, the stability order is $I > I I I > I I > I V$ .

Option B is correct.

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ii)

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