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# Solution to Exercise 7-4-5

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Compound C has the lowest pKa (most acidic): the oxygen acts as an electron withdrawing group by induction. Compound A has the highest pKa (the oxygen is in a position to act as an electron donating group by resonance, thus destabilizing the negative charge of the conjugate base).

Solution to Exercise 7-4-5 is shared under a not declared license and was authored, remixed, and/or curated by .

Solution to Exercise 7-4-5 is shared under a not declared license and was authored, remixed, and/or curated by Tim Soderberg.

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