Which statement below best explains acetylene's K_a being greater than ethylene's? A)Acetylide anions are resonance stabilized. B)The 4 $\pi$ electrons of the acetylide anion better stabilize a negative charge. C)The electronegativity of sp carbons being greater than sp² carbons. D)The electronegativity of sp carbons being less than sp² carbons. E)Acetylene has only two hydrogen atoms while ethylene has four.

Question

Quizplus · Accepted Answer

The greater electronegativity of sp hybridized carbons compared to sp² hybridized carbons allows the acetylide anion to better stabilize the negative charge, resulting in a higher acidity (greater Kₐ) for acetylene compared to ethylene.

Which Statement Below Best Explains Acetylene's Ka Being Greater Than π\piπ

Which Statement Below Best Explains Acetylene's K_a Being Greater Than $\pi$