Which one of the following orders of acid str | vedclass

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(C) The acid strength of a compound is determined by the stability of its conjugate base. The more stable the conjugate base,the stronger the acid. $1

Vedclass · Accepted Answer

$RCOOH > HOH > ROH > HC \equiv CH$

Vedclass · Answer

(C) The acid strength of a compound is determined by the stability of its conjugate base. The more stable the conjugate base,the stronger the acid. $1$. $RCOOH$ (Carboxylic acid) is the strongest acid among the given options because its conjugate base,the carboxylate ion $(RCOO^-)$,is resonance-stabilized. $2$. $HOH$ $(H_2O)$ is a stronger acid than $ROH$ (alcohol) because the alkyl group in $ROH$ is electron-donating ($+I$ effect),which destabilizes the alkoxide ion $(RO^-)$. $3$. $HC \equiv CH$ (terminal alkyne) is the weakest acid among these because the $sp$-hybridized carbon is less electronegative than oxygen,and the negative charge on the carbon atom is less stable compared to the negative charge on oxygen. Therefore,the correct order of acid strength is: $RCOOH > HOH > ROH > HC \equiv CH$.

Which one of the following orders of acid strength is correct?

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