Advertisements
Advertisements
Question
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.
Advertisements
Solution
| i. | Copper (II) chloride | Action of an acid on an oxide or carbonate |
| ii. |
Iron (II) chloride |
Action of an acid on a metal |
| iii. | Iron (III) chloride | Direct combination |
| iv. | Lead (II) chloride | Precipitation (double decomposition) |
| v. | Sodium chloride | Neutralisation of an alkali by an acid |
RELATED QUESTIONS
What kind of salt prepared by direct combination. Write an equation for the reaction that takes place in preparing the salt you have named.
Explain why fused calcium chloride is used in the preparation of FeCI3?
Explain hydronium ion. Write the ionization of sulphuric acid showing the formation of hydronium ion.
Some methods used for the laboratory preparation of salts are:
(a) Metal + acid
(b) Carbonate + acid
(c) Precipitation
(d) Direct combination
(e) Titration
Copy and complete the following table :
| Salt | Method of Preparation |
| Ammonium Sulphate | |
| Calcium carbonate | |
| Iron (III) chloride | |
| Lead nitrate | |
| Zinc sulphate |
Choosing only substances from the list given in the box below, write equations for the reactions which you would use in the laboratory to obtain:
(i) Sodium sulphate
(ii) Copper sulphate
(iii) Iron (II) sulphate
(iv) Zinc carbonate
| Dilute sulphuric acid |
Copper, Iron, |
Copper carbonate, Sodium carbonate |
Write the balanced equation for the preparation of the following compounds, starting from iron and other substance:
lead sulphate using dilute sulphuric acid.
Carbon dioxide and sulphur dioxide gas can be distinguished by using ______.
Give the equation for the preparation of the following salt from the starting material given.
Iron (III) Chloride from Iron
Explain why Anhydrous FeCl3 cannot be prepared by heating hydrated iron (III) chloride.
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 zincate.
