The strongest acid among the following is:

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(D) The acidity of organic compounds depends on the stability of the conjugate base formed after the removal of a proton.In $HC \equiv CH$,the carbon

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$CH_3OH$

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(D) The acidity of organic compounds depends on the stability of the conjugate base formed after the removal of a proton.In $HC \equiv CH$,the carbon atom is $sp$ hybridized,which has $50\%$ $s$-character,making it the most electronegative among the given hydrocarbons.$CH_3OH$ is an alcohol where the proton is attached to an oxygen atom,which is more electronegative than carbon.Comparing the acidity: $CH_3OH$ $(pK_a \approx 15.5)$ is significantly more acidic than $HC \equiv CH$ $(pK_a \approx 25)$,$C_6H_6$ $(pK_a \approx 43)$,and $C_2H_6$ $(pK_a \approx 50)$.

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