Question

Explain the acidic character of alkynes​

Answer 1

Answer:

Organic Chemistry I

The acidity of a terminal alkyne is due to the high level of s character in the sp hybrid orbital, which bonds with the s orbital of the hydrogen atom to form a single covalent bond. ... This slight positive charge makes the hydrogen atom a weak proton, which can be removed by a strong base.

Answer 2

The acidity of a terminal alkyne is due to the high level of s character in the sp hybrid orbital, which bonds with the s orbital of the hydrogen atom to form a single covalent bond. The high level of s character in an sp‐hybridized carbon causes the overlap region of the σ bond to shift much closer to the carbon atom.

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