A colourless aqueous solution contains nitrates of two metals, X and Y . When it was…
Chemistry · JEE Advanced · NTA Exams — Principles Related To Practical Chemistry
A colourless aqueous solution contains nitrates of two metals, X and Y. When it was added to an aqueous solution of NaCl, a white precipitate was formed. This precipitate was found to be partly soluble in hot water to give a residue P and a solution Q. The residue P was soluble in aq. NH3 and also in excess sodium thiosulphate. The hot solution Q gave a yellow precipitate with KI. The metals X and Y, respectively, are
- Ag and Pb
- Ag and Cd
- Cd and Pb
- Cd and Zn
Answer
(A) Ag and Pb
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