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in Chemistry by (45.7k points)

A colorless 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 thiosulfate. The hot solution Q gave a yellow precipitate with KI. The metals X and Y, respectively, are 

(A) Ag and Pb 

(B) Ag and Cd 

(C) Cd and Pb 

(D) Cd and Zn

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1 Answer

+1 vote
by (45.0k points)

(A) Ag and Pb

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