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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
Correct answer is option 'A'. Can you explain this answer?
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A colorless aqueous solution contains nitrates of two metals, X and Y....


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A colorless aqueous solution contains nitrates of two metals, X and Y....
Metal X is Ag (Silver) and Metal Y is Pb (Lead)

Formation of white precipitate:
- The white precipitate formed when the colorless aqueous solution is added to NaCl is AgCl (Silver Chloride).
- Ag+ ions from the silver nitrate solution react with Cl- ions from the sodium chloride solution to form a white precipitate of AgCl.

Solubility of precipitate:
- The precipitate is partly soluble in hot water, indicating that it is AgCl.
- On heating, some AgCl dissolves to form a solution Q, while the remaining AgCl forms a residue P.

Solubility of residue P:
- Residue P is soluble in aqueous ammonia (aq. NH3).
- This indicates that P is AgCl, as AgCl is soluble in excess ammonia to form a complex ion [Ag(NH3)2]+.

Solubility of residue P in sodium thiosulfate:
- Residue P is also soluble in excess sodium thiosulfate (Na2S2O3).
- This further confirms that P is AgCl, as AgCl is soluble in sodium thiosulfate due to the formation of a complex ion [Ag(S2O3)2]3-.

Formation of yellow precipitate with KI:
- The hot solution Q, obtained after the partial dissolution of AgCl, gives a yellow precipitate with KI.
- This indicates the presence of iodide ions (I-) in solution Q.
- The formation of a yellow precipitate with KI is a characteristic test for the presence of Pb2+ ions, which form PbI2 (Lead Iodide).

Conclusion:
- Based on the given observations, it can be concluded that the colorless aqueous solution contains nitrates of two metals, Ag (Silver) and Pb (Lead).
- Metal X is Ag (Silver) and metal Y is Pb (Lead).
- Therefore, the correct answer is option A: Ag and Pb.
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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, area)Ag and Pbb)Ag and Cdc)Cd and Pbd)Cd and ZnCorrect answer is option 'A'. Can you explain this answer?
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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, area)Ag and Pbb)Ag and Cdc)Cd and Pbd)Cd and ZnCorrect answer is option 'A'. Can you explain this answer? for JEE 2024 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about 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, area)Ag and Pbb)Ag and Cdc)Cd and Pbd)Cd and ZnCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for JEE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for 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, area)Ag and Pbb)Ag and Cdc)Cd and Pbd)Cd and ZnCorrect answer is option 'A'. Can you explain this answer?.
Solutions for 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, area)Ag and Pbb)Ag and Cdc)Cd and Pbd)Cd and ZnCorrect answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for JEE. Download more important topics, notes, lectures and mock test series for JEE Exam by signing up for free.
Here you can find the meaning of 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, area)Ag and Pbb)Ag and Cdc)Cd and Pbd)Cd and ZnCorrect answer is option 'A'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of 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, area)Ag and Pbb)Ag and Cdc)Cd and Pbd)Cd and ZnCorrect answer is option 'A'. Can you explain this answer?, a detailed solution for 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, area)Ag and Pbb)Ag and Cdc)Cd and Pbd)Cd and ZnCorrect answer is option 'A'. Can you explain this answer? has been provided alongside types of 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, area)Ag and Pbb)Ag and Cdc)Cd and Pbd)Cd and ZnCorrect answer is option 'A'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice 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, area)Ag and Pbb)Ag and Cdc)Cd and Pbd)Cd and ZnCorrect answer is option 'A'. Can you explain this answer? tests, examples and also practice JEE tests.
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