Question

Match the reagents (in List I) with the cations (in List II) which can be identified.

Answer 1

The reagent $K_4\left[{Fe\left(CN\right)}_6\right]$ is used in the idntification of the cations ${Zn}^{2+}$, ${Fe}^{3+}$, ${Cu}^{2+}$ and ${Cd}^{2+}$.
The reagent ${NH}_{4}CNS$ is used in the idntification of the cation ${Cu}^{2+}$.
The reagent ${CH}_{3}COONa$ is used in the idntification of the cation ${Zn}^{2+}$.
The reagent $H_{2}S/H^{+}$ is used in the idntification of the cation ${Ni}^{2+}$.
The reagent $H_{2}S/{NH}_{2}OH-{NH}_{4}Cl$ is used in the idntification of the cation ${Fe}^{3+}$.