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प्रश्न
You are given a mixture of precipitated copper hydroxide and zinc hydroxide. Name a solvent which will dissolve:
Only zinc hydroxide
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उत्तर
Addition of excess of NaOH.
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संबंधित प्रश्न
Match the salts given in Column I with their method of preparation given in Column II.
| Column I | Column II | ||
| 1 | Pb(NO3)2 from PbO | A | Simple displacement |
| 2 | MgCl2 from Mg | B | Titration |
| 3 | FeCl3 from Fe | C | Neutralization |
| 4 | NaNO3 from NaOH | D | Precipitation |
| 5 | ZnCO3 from ZnSO4 | E | Combination |
Name a solution that will separate the component of the following mixture: CaO from PbO
Name a solution that will separate the component of the following mixture: CuO from ZnO
Choose the correct answer from the options given below :
Which one is colourless anion?
You are given a mixture of precipitated copper hydroxide and zinc hydroxide. Name a solvent which will dissolve:
Both copper hydroxide and zinc hydroxide
Give the balanced equations for the reaction with two different amphoteric oxides with a caustic alkali.
The hydroxide soluble in excess of ammonium hydroxide is ______.
Write balanced equation for a metal that evolves a gas which burns with a pop sound when boiled with alkali solutions.
An amphoteric oxide.
Write balanced equation for a coloured metallic oxide which dissolves in alkalis to yield colourless solutions.
