Chemistry · Electronic displacement in a covalent bond: Inductive effect, electromeric effect, resonance and hyperconjugation

Which of the following is maximum stable?

Which of the following is maximum stable?

  • A. Conjugated alkadiene \( \left(C H_{2}=C H-C H=C H_{2}\right) \)
  • B. Isolated alkadiene \( \left(C H_{2}=C H-C H_{2}-C H=C H_{2}\right) \)
  • C. cumulated alkadiene \( \left(C H_{2}=C=C H_{2}\right) \)
  • D. All are equal

Step-by-step solution

Conjugated dienes have overlapping p-orbitals allowing resonance stabilization, making them more stable than isolated or cumulated dienes. Cumulated dienes are strained and less stable, while isolated dienes lack conjugation.
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