Ethyne is more acidic than ethene. why?

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Solution

The acidic character depends upon the % of s-character of C-H bond. Higher will be the s-character more will be the acidic character. In Ethyne, the C-H bond has 50% s-character as compared to ethylene which has 33.33% s-character therefore Ethyne is more acidic than ethylene.

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Give reasons :
(a) Ethyne is more reactive than ethene.
(b) Ethene is more reactive than ethane.
(c) Hydrocarbons are excellent fuels.

C H_{3} C H_{3} > C H_{2} = C H_{2} > H C = C h

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