Question

The by product of Solvay-ammonia process is

• A. $C{O}_2$
• B. $N{H}_3$
• C. $CaC{l}_2$
• D. $CaC{O}_3$

Answer 1

Answer: (C)

$CaC{l}_2$ is produced as a by-product in Solvay ammonia process:
$NaCl+C{O}_2+N{H}_3+H_{2}O\to NaHC{O}_3+N{H}_{4}Cl$
$CaC{O}_3\to C{O}_2+CaO$
$2N{H}_{2}Cl+CaO\to 2N{H}_3+\underset{\text{ by product }}{CaC{l}_2}+H_{2}O$
Sodium carbonate is manufactured by Solvay ammonia process. The raw materials are brine $(NaCl)$, ammonia and carbon dioxide.