NEET 2017 Chemistry question

Which one is the correct order of acidity?

(1)
(2)Correct
(3)
(4)

Answer: (2)

Solution

The acidity of a hydrocarbon depends on the s-character of the carbon bearing the hydrogen (the greater the s-character, the more electronegative the carbon and the more stable the carbanion): (50%) > (33%) > (25%). Ethyne has two acidic C-H hydrogens; propyne has one, and its

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Question ID VK-092076