$A$ nitrate when mixed with common salt gives a white precipitate which is soluble in dilute $NH_4OH$. It is the nitrate of

The only cations present in a slightly acidic solution are $Fe^{3+}$,$Zn^{2+}$,and $Cu^{2+}$. The reagent that when added in excess to this solution would identify and separate $Fe^{3+}$ in one step is

How do we differentiate between $Fe^{3+}$ and $Cr^{3+}$ in group $III$?

$Fe^{2+}$ ion can be distinguished from $Fe^{3+}$ ion by

When sodium nitroprusside is added to an alkaline solution containing sulfide ions,a ........ is obtained.

Which ion is detected using Nessler's reagent?