Chemistry
Grade-10
Easy
Question
The intermediate product of the Solvay process is ………
- Washing soda
- Baking Soda
- Lime Soda
- Carbon dioxide
Hint:
The intermediate is sodium hydrogen carbonate.
The correct answer is: Baking Soda
- The Solvay process produces soda ash (Na2CO3) from brine (NaCl) and from limestone (CaCO3). The overall process is:
- 2 NaCl + CaCO3 → Na2CO3 + CaCl2
- A simplified description can be given using the four different, interacting chemical reactions. In the first step in the process, carbon dioxide (CO2) passes through a concentrated aqueous solution of sodium chloride (NaCl) and ammonia (NH3).
- NaCl + CO2 + NH3 + H2O → NaHCO3 + NH4Cl
- The intermediate is baking soda, sodium hydrogen carbonate.
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