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प्रश्न
Identify the substance underlined, in the following case:
Cation that does not form a precipitate with ammonium hydroxide but forms one with sodium hydroxide.
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उत्तर
Calcium (Ca2+)
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संबंधित प्रश्न
Name the kind of particles present in sodium hydroxide solution.
Name the chloride of a metal which is soluble in excess of ammonium hydroxide. Write equation for the same.
Using sodium hydroxide solution, how will you distinguish:
Iron (II) chloride from iron (III) chloride
Write the observation, and balanced equation for the following reaction:
Sodium hydroxide is added dropwise to a solution of zinc sulphate, till it is in excess.
Choose the correct answer from the options given below :
Hydroxide of this metal is soluble is sodium hydroxide solution
Sodium hydroxide solution is added first in a small quantity, then in excess to the aqueous salt solutions of copper (II) sulphate, zinc nitrate, lead nitrate, calcium chloride, and iron (III) sulphate. Copy the following table and write the colour of the precipitate in (i) to (v) and the nature of the precipitate (soluble or insoluble) in (vi) to (x).
| Aqueous salt solution | Colour of precipitate when NaOH is added in a small quantity | Nature of precipitate (soluble or insoluble) when NaOH is added in excess |
| Copper (II) sulphate | (i) | (vi) |
| Zinc nitrate | (ii) | (vii) |
| Lead nitrate | (iii) | (viii) |
| Calcium chloride | (iv) | (ix) |
| Iron (III) Sulphate | (v) | (x) |
Sodium hydroxide solution is added to the solutions containing the ions mentioned in List X. List Y gives the details of the precipitate. Match the ions with their coloured precipitates.
| List X | List Y |
| (i) Pb2+ | (A) Reddish Brown |
| (ii) Fe2+ | (B) White insoluble inexcess |
| (iii) Zn2+ | (C) Dirty green |
| (iv) Fe3+ | (D) White soluble in excess |
| (v) Cu2+ | (E) White soluble in excess |
| (vi) Ca2+ | (F) Blue |
Distinguish by adding:
Sodium hydroxide solution and ammonium hydroxide solution to lead nitrate solution and zinc nitrate solution.
Distinguish by adding:
Sodium hydroxide solution and ammonium hydroxide solution to copper salt solution and ferrous salt solution.
Write the word equation when ammonium salt is heated with caustic soda solution.
