68 715
Assignments Done
100%
Successfully Done
In January 2019

Answer to Question #53796 in Organic Chemistry for tarun jain

Question #53796
Why is ethyne more acidic than ethane?
Expert's answer
Terminal alkynes (ethyne) have carbon atoms with sp-hybridization, and alkanes (ethane) contain carbons with sp3 – hybridization. Since s-character of hybride orbitals is larger by 25% for ethyne than for ethane, sp – orbital is closer to carbon nuclei than sp3 – one. Therefore, due to the most electrostatic stabilization of the lone pair, the most stable carboanion is formed for ethyne upon deprotonation. Taking into account that higher stability of carboanion indicates higher acidity of initial neutral compound, ethyne is more acidic than ethane.

Need a fast expert's response?

Submit order

and get a quick answer at the best price

for any assignment or question with DETAILED EXPLANATIONS!

Comments

No comments. Be first!

Leave a comment

Ask Your question

Submit
Privacy policy Terms and Conditions