Question

Group reagent for the precipitation of group II basic radicals for the qualitative analysis is :

• A. $dil.HCl+H_{2}S$
• B. $N{H}_{4}Cl\left(\text{solid}\right)+N{H}_{4}OH\left(\text{solution}\right)+H_{2}S$
• C. $(N{H}_4{)}_{2}C{O}_3\text{solution}$
• D. $\text{None of the above}$

Answer 1

The correct option is A $dil.HCl+H_{2}S$

Option (A) is correct.
Group reagent for the precipitation of group II basic radicals for the qualitative analysis is $dil.HCl+H_{2}S$. In II group, sulphides are precipitated in acidic medium.