Question

Which one of the following salt solutions would produce a precipitate when added to $H_{2}S{O}_4$ but not when added to $HCl$?

• A. $LiN{O}_3$
• B. $N{H}_{4}N{O}_3$
• C. $CsN{O}_3$
• D. $Ba{\left(N{O}_3\right)}_2$
• E. $AgN{O}_3$

Answer 1

The correct option is D $Ba{\left(N{O}_3\right)}_2$

When barium nitrate is added to sulphuric acid, it produces a white precipitate of barium sulphate. No such precipitate is obtained when barium nitrate reacts with HCl.

$Ba(N{O}_3{)}_2+H_{2}S{O}_4\to BaS{O}_4\downarrow +2HN{O}_3$

$Ba(N{O}_3{)}_2+2HCl\to BaC{l}_2+2HN{O}_3$