Which of the following statements correctly distinguishes the fundamental nature of the mesomeric ef — GOC and Organic Chemistry Basics Chemistry Question

💡 Solution & Explanation

The mesomeric effect involves $\pi$ electrons or lone pairs and operates permanently throughout a conjugated system without significant distance decay. The inductive effect involves permanent polarization of $\sigma$ bonds due to electronegativity differences and decays rapidly (usually negligible after 3 carbons). Both effects can be positive (electron-donating) or negative (electron-withdrawing).