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प्रश्न
For each of the salt: A, B, C and D, suggest a suitable method of its preparation.
D is a soluble salt of zinc.
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उत्तर
Zinc sulphide [ZnS] by direct combination.
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संबंधित 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)
Choose the method of preparation of the following salts, from the methods given in the list:
[List : A. Neutralization B. Precipitation C. Direct combination D. Substitution ]
(i) Lead chloride
(ii) Iron (II) sulphate
(iii) Sodium nitrate
(iv) Iron (III) chloride
State how would you prepare copper (II) oxide from
Copper nitrate
Give equation to prepare the following as directed
NaHCO3 from Na2CO3
Write the equation for the laboratory preparation of sodium sulphate using dilute sulphuric acid.
Choosing the correct words given in brackets, complete the sentence given below: Sodium sulphate from sodium carbonate.
Give the equation for the preparation of the following salt from the starting material given.
Copper sulphate from copper (II) oxide
From the list given below, which one is:
[SO2, SiO2, Al2O3, CO, MgO, Na2O]
- A covalent oxide of a metalloid.
- An oxide which when dissolved in water form acid.
- A basic oxide.
- An amphoteric oxide.
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.
For the preparation of the following salts - give a balanced equation in the following case.
Lead [II] chloride from lead carbonate [give two equations]
