Based on the relative acidity of oxalic, formic, and acetic acids, which of the

Question

Based on the relative acidity of oxalic, formic, and acetic acids, which of the following statements is true?

A. Having an electron-donating substituent destabilizes the negative charge of the conjugate base, thereby increasing the pH.

B. Having an electron-donating substituent stabilizes the negative charge of the conjugate base, thereby increasing the pH.

C. Having an electron-withdrawing substituent destabilizes the negative charge of the conjugate base, thereby increasing the pH.

D. Having an electron-withdrawing substituent stabilizes the negative charge of the conjugate base, thereby increasing the pH.

Explanation / Answer

answer :

A. Having an electron-donating substituent destabilizes the negative charge of the conjugate base, thereby increasing the pH.

Explanation :

Because, the presence of electron donating group increases the electron density on negatively charged oxygen, which destabilises the conjugate base and thus the acidic nautre of the coresponding aicd will decrease. And hence the pH of solution would increase.

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