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प्रश्न
Distinguish between the given pair of compounds using the test given within bracket:
A lead salt and a zinc salt (using excess ammonium hydroxide)
Distinguish between the following pair of compounds using the test given within bracket.
A lead salt and a zinc salt (using excess ammonium hydroxide)
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उत्तर
| Lead salt | Zinc salt | |
| 1. | On adding ammonium hydroxide, a white precipitate of lead hydroxide, Pb(OH)2, is formed. | On adding ammonium hydroxide, a white gelatinous precipitate of zinc hydroxide, Zn(OH)2, is formed. |
| 2. | The precipitate does not dissolve in excess ammonium hydroxide. | The precipitate dissolves in excess ammonium hydroxide, forming a clear solution. |
Hence, lead salt remains insoluble, while zinc salt dissolves in excess ammonium hydroxide.
संबंधित प्रश्न
Write a balanced chemical equation for the preparation of the following salts
Copper carbonate
Name the procedure used to prepare a sodium salt such as sodium sulphate.
How is the following salt prepared:
Lead (II) oxide from lead.
How is the following salt prepared:
Lead carbonate from lead nitrate.
You are provided with the following chemicals:
NaOH, Na2CO3, H2O, Zn(OH)2, CO2, HCI, Fe, H2SO4, CI2, Zn.
Using the suitable chemicals from the given list only, state briefly how you would prepare iron (III) chloride.
Explain why fused calcium chloride is used in the preparation of FeCI3?
Write the equations for the reaction to prepare lead sulphate from lead carbonate.
Match the salts given in Column I with their method of preparation given in Column II:
| Column I | Column II | ||
| (i) | Pb(NO3)2 from PbO | (a) | Simple displacement |
| (ii) | MgCl2 from Mg | (b) | Titration |
| (iii) | FeCl3 from Fe | (c) | Neutralization |
| (iv) | NaNO3 from NaOH | (d) | Precipitation |
| (v) | ZnCO3 from ZnSO4 | (e) | Combination |
You are provided with the following chemicals:
NaOH, Na2CO3, H2O, Zn(OH)2, CO2, HCI, Fe, H2SO4, CI2, Zn.
Using the suitable chemicals from the given list only, state briefly how you would prepare sodium sulphate.
Select the word/s given which are required to correctly complete the blanks.
If a piece of magnesium was put into a solution M, ______ gas would be evolved.
