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(B) The Solvay process is used for the manufacture of $Na_2CO_3$. The raw materials used are $NaCl$,$CO_2$,$NH_3$,and $H_2O$.The chemical reactions in

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$NaCl, CO_2$ and $NH_3$

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(B) The Solvay process is used for the manufacture of $Na_2CO_3$. The raw materials used are $NaCl$,$CO_2$,$NH_3$,and $H_2O$.The chemical reactions involved are:$NH_3 + CO_2 + H_2O \rightarrow NH_4HCO_3$$NH_4HCO_3 + NaCl \rightarrow NaHCO_3 + NH_4Cl$$2NaHCO_3 \xrightarrow{\Delta} Na_2CO_3 + H_2O + CO_2$Thus,the correct chemicals are $NaCl, CO_2$ and $NH_3$.

Which of the following chemicals,in addition to water,are used for the manufacture of $Na_2CO_3$ by the Solvay process?

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