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प्रश्न
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
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उत्तर
(i) Lead chloride Precipitation
(ii) Iron (II) sulphate substitution
(iii) Sodium nitrate Neutralization
(iv) Iron (III) chloride Direct combination
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संबंधित प्रश्न
Give the preparation of the salt given in the left column by matching with the methods given in the right column. Write balanced equations for each preparation.
| Salt | Method of Preparation |
| Zinc sulphate | Precipitation |
| Ferrous sulphide | Displacement |
| Barium sulphate | Neutralization |
| Sodium sulphate | Synthesis |
State how would you prepare copper (II) oxide from
Copper nitrate
State how would you prepare copper (II) oxide from
copper sulphate
From the list of the substances given, name the substances which you would use to prepare each of the following salts:
List of substances: Copper, lead, sodium, zinc, copper oxide, lead carbonate, sodium carbonate solution, dilute hydrochloric acid, dilute nitric acid and dilute sulphuric acid.
Salts: (a) zinc sulphate (b) copper sulphate (c) sodium sulphate (d) lead sulphate.
Define the following term:
Neutralisation
Which of the following methods, (a), (b), (c), (d) or (e) is generally used for preparing the chlorides listed below from (i) to (v). Answer by writing down the chloride and the letter pertaining to the corresponding method. Each letter is to be used only once.
(a) Action of an acid on a metal.
(b) Action of an acid on an oxide or carbonate.
(c) Direct combination.
(d) Neutralization of an alkali by an acid.
(e) Precipitation (double decomposition).
(i) copper(II) chloride.
(ii) iron(II) chloride.
(iii) iron(IIl) chloride.
(iv) lead (II) chloride.
(v) sodium chloride.
The preparation of lead sulphate from lead carbonate is a two step process (lead sulphate cannot be prepared by adding dilute sulphuric acid to lead carbonate)
What is the first step that is required to prepare lead sulphate from lead carbonate?
Give the equation for the preparation of the following salt from the starting material given.
Copper sulphate from copper (II) oxide
Explain the following method with example.
Direct combination
Explain why Anhydrous FeCl3 cannot be prepared by heating hydrated iron (III) chloride.
