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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
उत्तर
Addition of excess of NaOH.
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संबंधित प्रश्न
_____________ (AgCl / PbCl2), a white precipitate is soluble in excess NH4OH
State your observation When excess sodium hydroxide is added to calcium nitrate solution
Choose the correct answer from the options given below :
Sodium zincate (Na2ZnO2) is
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.
State the colour of the residue formed when nitrates of :
1. Calcium
2. Zinc
3. Lead
4. Copper are strongly heat
The hydroxide soluble in excess of ammonium hydroxide is ______.
An amphoteric oxide.
Write a balanced equation for a coloured metallic oxide which dissolves in alkalis to yield colourless solutions.
Write balanced equation for a metal that evolves a gas which burns with a pop sound when boiled with alkali solutions.
Write balanced equation for a coloured metallic oxide which dissolves in alkalis to yield colourless solutions.
