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A metal nitrate (X) gives a white precipitate with ammonia solution but the precipitate gets dissolved on adding ammonium salts. Lead dioxide and concentrated nitric acid on boiling with a dilute solution of metal nitrate (X) produces a violet-red (or purple) colour solution. Small amount of metal nitrate (X) gives a amethystred bead with borax in oxidising flame when cold. The cation of metal nitrate is :
- a)Bi3+
- b)Mg2+
- c)Zn2+
- d)Mn2+
Correct answer is option 'D'. Can you explain this answer?
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Verified Answer
A metal nitrate (X) gives a white precipitate with ammonia solution bu...
On adding ammonium salts, the reaction proceeds towards left.
5PbO2 + 2Mn2+ + 4H+→ 2MnO4- (violet-red or purple colouration) + 5Pb2+ + 2H2O
Most Upvoted Answer
A metal nitrate (X) gives a white precipitate with ammonia solution bu...
Explanation:
Metal nitrate (X) exhibits several characteristic reactions that can be used to identify the cation present. Let's go through each of these reactions in detail:
1. Reaction with ammonia solution:
Metal nitrate (X) forms a white precipitate with ammonia solution. This indicates the presence of a metal cation that forms an insoluble hydroxide precipitate. However, the precipitate dissolves on adding ammonium salts, indicating the formation of a soluble complex ion. This behavior is characteristic of the Mn2+ cation.
2. Reaction with lead dioxide and concentrated nitric acid:
When metal nitrate (X) is boiled with lead dioxide and concentrated nitric acid, it produces a violet-red (or purple) color solution. This color change indicates the formation of a complex ion containing the metal cation. The formation of a colored complex is a characteristic feature of the Mn2+ cation.
3. Reaction with borax in oxidizing flame:
A small amount of metal nitrate (X) forms an amethyst-red bead with borax in the oxidizing flame when cold. This coloration is indicative of the presence of a transition metal cation. Among the given options, only Mn2+ is a transition metal cation.
Therefore, based on these characteristic reactions, we can conclude that the cation of metal nitrate (X) is Mn2+ (Manganese).
Metal nitrate (X) exhibits several characteristic reactions that can be used to identify the cation present. Let's go through each of these reactions in detail:
1. Reaction with ammonia solution:
Metal nitrate (X) forms a white precipitate with ammonia solution. This indicates the presence of a metal cation that forms an insoluble hydroxide precipitate. However, the precipitate dissolves on adding ammonium salts, indicating the formation of a soluble complex ion. This behavior is characteristic of the Mn2+ cation.
2. Reaction with lead dioxide and concentrated nitric acid:
When metal nitrate (X) is boiled with lead dioxide and concentrated nitric acid, it produces a violet-red (or purple) color solution. This color change indicates the formation of a complex ion containing the metal cation. The formation of a colored complex is a characteristic feature of the Mn2+ cation.
3. Reaction with borax in oxidizing flame:
A small amount of metal nitrate (X) forms an amethyst-red bead with borax in the oxidizing flame when cold. This coloration is indicative of the presence of a transition metal cation. Among the given options, only Mn2+ is a transition metal cation.
Therefore, based on these characteristic reactions, we can conclude that the cation of metal nitrate (X) is Mn2+ (Manganese).
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A metal nitrate (X) gives a white precipitate with ammonia solution but the precipitate gets dissolved on adding ammonium salts. Lead dioxide and concentrated nitric acid on boiling with a dilute solution of metal nitrate (X) produces a violet-red (or purple) colour solution. Small amount of metal nitrate (X) gives a amethystred bead with borax in oxidising flame when cold. The cation of metal nitrate is :a)Bi3+b)Mg2+c)Zn2+d)Mn2+Correct answer is option 'D'. Can you explain this answer?
Question Description
A metal nitrate (X) gives a white precipitate with ammonia solution but the precipitate gets dissolved on adding ammonium salts. Lead dioxide and concentrated nitric acid on boiling with a dilute solution of metal nitrate (X) produces a violet-red (or purple) colour solution. Small amount of metal nitrate (X) gives a amethystred bead with borax in oxidising flame when cold. The cation of metal nitrate is :a)Bi3+b)Mg2+c)Zn2+d)Mn2+Correct answer is option 'D'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about A metal nitrate (X) gives a white precipitate with ammonia solution but the precipitate gets dissolved on adding ammonium salts. Lead dioxide and concentrated nitric acid on boiling with a dilute solution of metal nitrate (X) produces a violet-red (or purple) colour solution. Small amount of metal nitrate (X) gives a amethystred bead with borax in oxidising flame when cold. The cation of metal nitrate is :a)Bi3+b)Mg2+c)Zn2+d)Mn2+Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A metal nitrate (X) gives a white precipitate with ammonia solution but the precipitate gets dissolved on adding ammonium salts. Lead dioxide and concentrated nitric acid on boiling with a dilute solution of metal nitrate (X) produces a violet-red (or purple) colour solution. Small amount of metal nitrate (X) gives a amethystred bead with borax in oxidising flame when cold. The cation of metal nitrate is :a)Bi3+b)Mg2+c)Zn2+d)Mn2+Correct answer is option 'D'. Can you explain this answer?.
A metal nitrate (X) gives a white precipitate with ammonia solution but the precipitate gets dissolved on adding ammonium salts. Lead dioxide and concentrated nitric acid on boiling with a dilute solution of metal nitrate (X) produces a violet-red (or purple) colour solution. Small amount of metal nitrate (X) gives a amethystred bead with borax in oxidising flame when cold. The cation of metal nitrate is :a)Bi3+b)Mg2+c)Zn2+d)Mn2+Correct answer is option 'D'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about A metal nitrate (X) gives a white precipitate with ammonia solution but the precipitate gets dissolved on adding ammonium salts. Lead dioxide and concentrated nitric acid on boiling with a dilute solution of metal nitrate (X) produces a violet-red (or purple) colour solution. Small amount of metal nitrate (X) gives a amethystred bead with borax in oxidising flame when cold. The cation of metal nitrate is :a)Bi3+b)Mg2+c)Zn2+d)Mn2+Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A metal nitrate (X) gives a white precipitate with ammonia solution but the precipitate gets dissolved on adding ammonium salts. Lead dioxide and concentrated nitric acid on boiling with a dilute solution of metal nitrate (X) produces a violet-red (or purple) colour solution. Small amount of metal nitrate (X) gives a amethystred bead with borax in oxidising flame when cold. The cation of metal nitrate is :a)Bi3+b)Mg2+c)Zn2+d)Mn2+Correct answer is option 'D'. Can you explain this answer?.
Solutions for A metal nitrate (X) gives a white precipitate with ammonia solution but the precipitate gets dissolved on adding ammonium salts. Lead dioxide and concentrated nitric acid on boiling with a dilute solution of metal nitrate (X) produces a violet-red (or purple) colour solution. Small amount of metal nitrate (X) gives a amethystred bead with borax in oxidising flame when cold. The cation of metal nitrate is :a)Bi3+b)Mg2+c)Zn2+d)Mn2+Correct answer is option 'D'. Can you explain this answer? in English & in Hindi are available as part of our courses for NEET.
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