The useful by-products obtained in the Solvay | vedclass

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Question

(C) In the $Solvay$ process,the overall reaction is: $2NaCl + CaCO_3 \rightarrow Na_2CO_3 + CaCl_2$. However,the process involves the recovery of ammo

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$NH_4Cl$ solution and quick lime

Vedclass · Answer

(C) In the $Solvay$ process,the overall reaction is: $2NaCl + CaCO_3 \rightarrow Na_2CO_3 + CaCl_2$. However,the process involves the recovery of ammonia $(NH_3)$ using lime $(Ca(OH)_2)$. The reaction for ammonia recovery is: $2NH_4Cl + Ca(OH)_2 \rightarrow 2NH_3 + CaCl_2 + 2H_2O$. The by-products obtained from the process are $CaCl_2$ (calcium chloride) and $NH_3$ (which is recycled). Looking at the options provided,the question asks for useful by-products. In the context of the industrial process,$NH_4Cl$ is formed as an intermediate which is then treated with quick lime ($CaO$ or $Ca(OH)_2$) to recover $NH_3$. Thus,the combination of $NH_4Cl$ solution and quick lime is essential for the regeneration of ammonia,making them the key components in the by-product management cycle.

The useful by-products obtained in the $Solvay$ process of manufacturing sodium carbonate are:

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