A solution of a salt of a weak acid HY is added to a solution of another weak acid HX. Based on the information given above, which of the following species is the strongest base?

(A) HX (aq)

(B) Y - (aq)

(C) HY (aq)

(D) X - (aq)

Answer: the strongest base will be A) HX (aq)

Explanation:

The cationic part of the base is formed from the cation in the weak acidic salt solution, (say Na2CO3 = HY, and H = Na) i. e H+, whereas the anionic part of the base comes from the the weak base (say NH4OH = HX, and X = OH-)

Then the strong base formed will be HX