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प्रश्न
Explain the following method with example.
Direct combination
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उत्तर
Direct combination i.e. by heating two elements together
\[\ce{Metal + Non metal -> Salt}\]
\[\ce{2Na(molten) + Cl2 -> 2NaCl}\]
\[\ce{2Fe + 3Cl2 -> 2FeCl3}\]
संबंधित प्रश्न
Write a balanced chemical equation for the preparation of the following salts
Copper carbonate
How would you obtain salt from another salt?
How is the following salt prepared:
Magnesium carbonate from magnesium chloride.
Write equation for the laboratory preparation of the following salt, using sulphuric acid: Iron (II) sulphate from the iron.
Choosing the correct words given in brackets, complete the sentence given below: Copper sulphate from copper.
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.
Carbon dioxide and sulphur dioxide gas can be distinguished by using ______.
Fill in the blanks with suitable words:
An acid is a compound which when dissolved in water forms hydronium ions as the only ______ ions. A base is a compound which is soluble in water and contains ______ ions. A base reacts with an acid to form a ______ and water only. This type of reaction is known as ______.
For each of the salt: A, B, C and D, suggest a suitable method of its preparation.
A is a sodium salt.
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 chloride.
