Which of the following is the strongest acid?

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(D) The acidity of a compound depends on the stability of its conjugate base. $1$. For $HC \equiv CH$,the conjugate base is $HC \equiv C^-$,where the

Vedclass · Accepted Answer

$CH_3OH$

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(D) The acidity of a compound depends on the stability of its conjugate base. $1$. For $HC \equiv CH$,the conjugate base is $HC \equiv C^-$,where the negative charge is on an $sp$ hybridized carbon atom. $2$. For $C_6H_6$,the conjugate base is $C_6H_5^-$,where the negative charge is on an $sp^2$ hybridized carbon atom. $3$. For $C_2H_6$,the conjugate base is $C_2H_5^-$,where the negative charge is on an $sp^3$ hybridized carbon atom. $4$. For $CH_3OH$,the conjugate base is $CH_3O^-$,where the negative charge is on an oxygen atom. Since oxygen is more electronegative than carbon,the $CH_3O^-$ ion is the most stable conjugate base among the given options. Therefore,$CH_3OH$ is the strongest acid.

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