Which of the following is the most stable?

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(A) Conjugated alkadienes are the most stable due to resonance stabilization and delocalization of $\pi$-electrons.Isolated alkadienes are less stable

Vedclass · Accepted Answer

Conjugated alkadiene $(CH_2=CH-CH=CH_2)$

Vedclass · Answer

(A) Conjugated alkadienes are the most stable due to resonance stabilization and delocalization of $\pi$-electrons.Isolated alkadienes are less stable than conjugated ones but more stable than cumulated ones.Cumulated alkadienes are the least stable due to the presence of $sp$-hybridized carbon atoms and steric strain.Therefore,the order of stability is: $	ext{Conjugated} > 	ext{Isolated} > 	ext{Cumulated}$.

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