Using the pKa values of conjugate acids (anilinium 4.6, methylammonium 10.6, phenol 10.0, acetic acid 4.76, ethanol 15.9), which of the following reactions in aqueous medium lie predominantly to the right?

A $CH X_{3} NH X_{2} + C X_{6} H X_{5} NH X_{3} X^{+} CH X_{3} NH X_{3} X^{+} + C X_{6} H X_{5} NH X_{2}$
B $C X_{6} H X_{5} NH X_{2} + CH X_{3} NH X_{3} X^{+} C X_{6} H X_{5} NH X_{3} X^{+} + CH X_{3} NH X_{2}$
C $C X_{6} H X_{5} O X^{-} + CH X_{3} COOH C X_{6} H X_{5} OH + CH X_{3} COO X^{-}$
D $CH X_{3} CH X_{2} O X^{-} + C X_{6} H X_{5} OH CH X_{3} CH X_{2} OH + C X_{6} H X_{5} O X^{-}$

Answer: A, C, D

A reaction goes to the right when the acid on the left has a smaller pKa than the acid on the right. A: 4.6 < 10.6, favoured. B: 10.6 > 4.6, not favoured. C: acetic acid 4.76 < phenol 10.0, favoured. D: phenol 10.0 < ethanol 15.9, favoured.

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Using the pKa values of conjugate acids (anilinium 4.6, methylammonium 10.6, phenol 10.0, acetic acid 4.76, ethanol 15.9), which of the following reactions in aqueous medium lie predominantly to the right?

Answer: A, C, D

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