Question

In the synthesis of sodium carbonate, the recovery of ammonia is done by treating $NH_{4}Cl$ with $Ca(OH)_{2}.$ The by – product obtained in this process is.

• A. $CaCl_{2}$
• B. NaCl
• C. NaOH
• D. $NaHCO_{3}$

Answer 1

Answer: (A)

$CaCl_{2}$

Answer 2

: Sodium carbonate is generally prepared by solvay process. In this process, $NH_{3}Cl$ is treated with $Ca(OH)_{2}$ Calcium chloride is obtained as a by – product.

$2NH_{4}Cl + Ca(OH)_{2} \rightarrow 2NH_{3} + CaCl_{2} + 2H_{2}O$