Chemistry - Salt Analysis Question with Solution | TestHub

Oxidation number of metal $\mathrm{X}>\mathrm{Y}$

(Q) is soluble in excess ${\mathrm{NH}}_4\mathrm{OH}$

$(\mathrm{X})\&(\mathrm{Y})$ both can decolorize aqueous ${\mathrm{KMnO}}_4/{\mathrm{H}}^{+}$

Oxidation number of metal in black precipitate is +1