Answer:
d) BaF2
Explanation:
The compound which is more soluble in an acidic solution than in a neutral solution is shown below:-
First we will compare acidic with Neutral
[tex]acidic \rightarrow H+ ions[/tex]
So,
[tex]PbBr2 \rightarrow Pb+2 + 2Br-[/tex]
[tex]BaF2 \rightarrow Ba+2 + 2F-[/tex]
[tex]AgI \rightarrow Ag+ + I-[/tex]
[tex]CuCl \rightarrow Cu+ + Cl-[/tex]
Now, when we add H+ ions, so it will be
[tex]BaF2 \rightarrow Ba+2 + 2F-[/tex]
[tex]F- + H2O <-> HF + OH-[/tex]
Then it will reduces F-, as BaF2 begin to form more aqueous ions, so, it will rises the solubility
