Base strength of (a) H₃C–CH₂⁻ (b) H₂C=CH⁻ (c) H–C≡C⁻ is in the order of

Question

Dr. Abubacker · Accepted Answer

[Solution from source] The conjugate acids get more acidic from ethane (sp³) to ethene (sp²) to ethyne (sp), because more s-character holds the lone pair more tightly. The stronger the conjugate acid, the weaker the base, so the basicity order is ethyl > vinyl > acetylide anion. The reverse order (acetylide strongest) is the stability order, not the base strength. Answer (1).

Q. Base strength of (a) H₃C–CH₂⁻ (b) H₂C=CH⁻ (c) H–C≡C⁻ is in the order of

Explanation

Reviewed by Dr. Abubacker

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