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JEE Advanced 2020 Paper 1

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PART-II : CHEMISTRY

SECTION - 1

Each question has FOUR options. ONLY ONE of these four options is the correct answer.

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Question : 21

Total: 54

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

Ag and Pb
Ag and Cd
Cd and Pb
Cd and Zn

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