why does acetylene behave like weak acid
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The pKa value of acetylene is 25. It is very weakly acidic, and hence, the bases it reacts with is not sufficiently alkaline to react with it.
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Explanation:
As S - character increases the electronegativity of carbon increases which makes -C-H bond highly acidic in nature. We can justify theacidic character of Acetylene by following chemical reaction: Sodium metal when reacts with acetylene results in hydrogengetting displaces from acetylene and forming Sodium acetylide.
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