Which of the indicated H in the following is | vedclass

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(C) The acidity of a hydrogen atom depends on the stability of the conjugate base formed after the removal of the proton. $1$. $Z$ is a hydrogen attac

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$Z$

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(C) The acidity of a hydrogen atom depends on the stability of the conjugate base formed after the removal of the proton. $1$. $Z$ is a hydrogen attached to a nitrogen atom in an amide group $(-NH-)$. $2$. $p$ is a hydrogen attached to a nitrogen atom in an amide group $(-NH-)$. $3$. $X$ is an $\alpha$-hydrogen to a carbonyl group $(C=O)$. $4$. $Y$ is a hydrogen on a carbon atom not adjacent to any electron-withdrawing group. Comparing the acidity,the protons on the nitrogen atoms ($Z$ and $p$) are more acidic than the $\alpha$-hydrogens $(X)$ due to the resonance stabilization of the resulting amide anion. Between $Z$ and $p$,$Z$ is part of a cyclic structure where the nitrogen is adjacent to a carbonyl group,making it more acidic due to the inductive and resonance effects of the carbonyl group. Thus,$Z$ is the most acidic.

Which of the indicated $H$ in the following is most acidic?

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