Write reaction or step involved in theWashing soda

1.	Write reaction or step involved in theWashing soda
Answer» Preparation of washing soda by solvay’s process\tThe Solvay process is extensively used for industrial preparation of sodium carbonate (soda ash). The process is named after Ernest Solvay who developed the process during the 1860s.\tCarbon dioxide reacts with the dissolved ammonia to form ammonium carbonate followed by ammonium hydrogen carbonate.2NH3 +H2O + CO2→ (NH4)2CO3(Ammonia) (Ammonium Carbonate)(NH4)2CO3 + H2O + CO2\xa0→ NH4HCO3(Ammonium Carbonate) (Ammonium hydrogen carbonate)NH4HCO3 + NaCl → NH4Cl + NaHCO3Sodium hydrogen carbonate crystal separates. These are heated to give sodium carbonate. 2 NaHCO3→ Na2CO3 + CO2 + H2OBut this process cannot be used to prepare potassium due to the high solubility of potassium bicarbonate and hence difficult to be precipitated by adding ammonium bicarbonate to a saturated solution of potassium\xa0

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