Chemistry
Grade-10
Easy
Question
During the Solvay process, ammoniated brine is filtered to remove
- Ca(OH)2
- CaCO3
- CaCl2
- CaCO3 and MgCO3
Hint:
During the Solvay process, ammoniated brine is filtered to remove calcium chloride.
The correct answer is: CaCl2
The Solvay process is as follows:
- NaCl + CO2 + NH3 + H2O → NaHCO3 + NH4Cl
CaCO3 → CO2 + CaO
The sodium bicarbonate (NaHCO3) that precipitates out in previous reaction is filtered out from the hot ammonium chloride (NH4Cl) solution, and the solution is then reacted with the quicklime left over from heating the limestone to remove Calcium chloride.
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