Advertisements
Advertisements
प्रश्न
In the Solvay process, can we obtain sodium carbonate directly by treating the solution containing (NH4)2CO3 with sodium chloride? Explain.
Advertisements
उत्तर
No. In Solvay process, ammonium hydrogen carbonate is prepared from ammonium carbonate, which then reacts with sodium chloride to form sodium hydrogen carbonate. Due to low solubility of NaHCO3, it gets precipitated and decomposes on heating to give Na2CO3.
We cannot obtain sodium carbonate directly by treating the solution containing (NH4)2CO3 with sodium chloride as both the products formed on reaction, i.e., Na2CO3 and NH4C1 are soluble and the equilibrium will not shift in forward direction.
\[\ce{(NH4)2CO3 + 2NaCl ⇌ Na2CO3 + 2NH4Cl}\]
APPEARS IN
संबंधित प्रश्न
Find the oxidation state of sodium in Na2O2.
Discuss the various reactions that occur in the Solvay process.
Potassium carbonate cannot be prepared by Solvay process. Why?
Starting with sodium chloride how would you proceed to prepare sodium metal.
Describe two important uses of each of the following caustic soda.
Describe two important uses of the following sodium carbonate.
State as to why a solution of Na2CO3 is alkaline?
Amphoteric hydroxides react with both alkalies and acids. Which of the following Group 2 metal hydroxides is soluble in sodium hydroxide?
The formula of soda ash is ______.
A chemical A is used for the preparation of washing soda to recover ammonia. When CO2 is bubbled through an aqueous solution of A, the solution turns milky. It is used in whitewashing due to disinfectant nature. What is the chemical formula of A?
Complete the following reactions.
\[\ce{O^{-}2 + H2O ->}\]
Match the elements given in Column I with the colour they impart to the flame given in Column II.
| Column I | Column II |
| (i) Cs | (a) Apple green |
| (ii) Na | (b) Violet |
| (iii) K | (c) Brick red |
| (iv) Ca | (d) Yellow |
| (v) Sr | (e) Crimson red |
| vi) Ba | (f) Blue |
The pair of compounds which cannot exist together in solution is ______.
Which sodium salt will be heated with soda lime to obtain propane?
