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प्रश्न
Name a salt prepared by direct combination. Write an equation for the reaction that takes place in preparing the salt you have named.
Answer the following question related to salts and their preparations:
Name a salt prepared by direct combination. Write an equation for the reaction that takes place in preparing the salt you have named.
उत्तर
A salt prepared by direct combination is Iron (III) chloride.
\[\ce{\underset{Sodium}{2Na_{(s)}}+\underset{Chlorine}{Cl2_{(g)}}->[\Delta]\underset{Sodium chloride}{2NaCl_{(s)}}}\]
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संबंधित प्रश्न
Draw the structure of the stable positive ion formed when an acid dissolves in water.
Name the ions furnished by bases in solution.
Give one example : A hydroxide which is insoluble in water.
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Write the equation for the reaction that will take place when this first step is carried out.
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)
Why is the direct addition of dilute sulphuric acid to lead carbonate an impractical method of preparing lead sulphate?
Solution A is a sodium hydroxide solution. Solution B is a weak acid. Solution C is dilute sulphuric acid. Which solution will.
(i) Liberate sulphur dioxide from sodium sulphite
(ii) Give a white precipitate with zinc sulphate solution,(iii) Contain solute molecules and ions?
The following is a list of methods for the preparation of salts.
A – direct combination of two elements
B – reaction of a dilute acid with a metal.
C – reaction of a dilute acid with an insoluble base.
D – titration of a dilute acid with a solution of soluble base.
E – reaction of two solutions of salts to form a precipitate.
Choose from the above list A to E, the best method of preparing the following salt by giving a suitable equation in the following case:
Lead chloride.
For each of the salt: A, B, C and D, suggest a suitable method of its preparation.
B is an insoluble salt.
Making use only of substances chosen from those given below:
(Dilute sulphuric acid, sodium carbonate, Zinc, sodium sulphite, Lead, calcium carbonate)
Give the equation for the reaction by which you could obtain carbon dioxide.
A black coloured solid which on reaction with dilute sulphuric acid forms a blue coloured solution is ______.
