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प्रश्न
You are given a mixture of precipitated copper hydroxide and zinc hydroxide. Name a solvent which will dissolve:
Both copper hydroxide and zinc hydroxide
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उत्तर
Addition of excess of NH4OH.
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संबंधित प्रश्न
State your observations when Barium chloride solution is mixed with Sodium Sulphate Solution.
You are given a mixture of precipitated copper hydroxide and zinc hydroxide. Name a solvent which will dissolve:
Only zinc hydroxide
You are given three white powders-calcium carbonate, lead carbonate and zinc carbonate. Describe the tests you would carry out in solution, to identify the metal ion in each of the above compounds. Indicate clearly how you would prepare the solutions for the tests.
Sodium hydroxide solution can be used to distinguish between i. iron (II) sulphate solution and (ii) iron (III) sulphate solution; because these solutions give different coloured precipitates with sodium hydroxide solution. Give the colour of the precipitate formed with each of the solution.
What will you observe when barium chloride solution is added to iron(II) sulphate solution.
Give one chemical test to distinguish between the following pair of compounds:
Zinc sulphate solution and Zinc chloride solution
State the colour of the residue formed when nitrates of :
1. Calcium
2. Zinc
3. Lead
4. Copper are strongly heat
A given white crystalline salt was tested as follows:
The addition of barium chloride solution into this solution gave a white precipitate. What conclusions can be drawn for the observation?
An amphoteric oxide.
Write balanced equations for a coloured metallic oxide which dissolves in alkalis to yield colourless solutions.
