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प्रश्न
Three test tubes contain calcium nitrate solution, zinc nitrate solution and lead nitrate solution respectively. Each solution is divided into two portions (i) and (ii). Describe the effect of
- adding sodium hydroxide solution to each portion in turn till it is in excess.
- adding ammonium hydroxide to each portion in turn till it is in excess.
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उत्तर
| Solution | Effect of adding sodium hydroxide solution | Effect of adding ammonium hydroxide solution | ||
| Small amount | In excess | Small amount | In excess | |
| Calcium nitrate | White ppt. | No change | No ppt. | No change |
| Zinc nitrate | White ppt. | White ppt. dissolves to give a colourless solution | White ppt. | White ppt. dissolves to give a colourless solution |
| Lead nitrate | White ppt. | White ppt. dissolves to give a colourless solution | White ppt. | No change |
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संबंधित प्रश्न
Sodium hydroxide solution is added to solution A. A white precipitate is formed which is soluble in excess sodium hydroxide. Name the metal ion present in A.
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.
Using Sodium hydroxide solution, how would you distinguish: Ammonium sulphate from sodium sulphate.
Distinguish by adding:
Sodium hydroxide solution and ammonium hydroxide solution to calcium salt solution and lead salt solution.
Distinguish by adding:
Sodium hydroxide solution and ammonium hydroxide solution to copper salt solution and ferrous salt solution.
What is observed when hot, concentrated caustic soda solution is added to zinc? Write a balanced equation.
What is observed when hot, concentrated caustic soda solution is added to aluminium? Write a balanced equation.
Identify the cation in the following case:
Sodium hydroxide solution when added to Solution C gives a white precipitate which is insoluble in excess of sodium hydroxide solution.
Name the metal hydroxides which are insoluble in caustic soda solution.
Write the word equation when ammonium salt is heated with caustic soda solution.
