Chemistry - Salt Analysis Question with Solution | TestHub

A metal $M$ and its compound can give the following observable changes in a consequence of reactions

$$\mathrm{M}\underset{{\mathrm{HNO}}_3}{\overset{\text{ dilute }}{\to }}\left[\begin{array}{c}\text{ Colourless }\\ \text{ solution }\end{array}\right]\underset{\mathrm{NaOH}}{\overset{\text{ aqueous }}{\to }}\left[\begin{array}{l}\text{ White }\\ \text{ precipitate }\end{array}\right]\underset{\mathrm{NaOH}\text{ (aq.) }}{\overset{\text{ excess }}{\to }}\left[\begin{array}{c}\text{ Colourless }\\ \text{ solution }\end{array}\right]\underset{\mathrm{NaOH}\text{ (aq.) }}{\overset{{\mathrm{H}}_2\mathrm{S}}{\to }}\left[\begin{array}{l}\text{ White }\\ \text{ precipitate }\end{array}\right]$$