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(D) The Solvay process is used for the manufacture of sodium carbonate $(Na_2CO_3)$.The key steps involve the reaction of brine ($NaCl$ solution) with

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$Na_2C_2O_4$

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(D) The Solvay process is used for the manufacture of sodium carbonate $(Na_2CO_3)$.The key steps involve the reaction of brine ($NaCl$ solution) with ammonia $(NH_3)$ and carbon dioxide $(CO_2)$ to form ammonium bicarbonate $(NH_4HCO_3)$ and sodium bicarbonate $(NaHCO_3)$.$NH_4HCO_3$ and $NaHCO_3$ are intermediates in this process.$Na_2C_2O_4$ (sodium oxalate) is not involved in the Solvay process.

List-$I$ (Salt)	List-$II$ (Flame colour wavelength)
$(a)$ $LiCl$	$(i)$ $455.5 \text{ nm}$
$(b)$ $NaCl$	$(ii)$ $670.8 \text{ nm}$
$(c)$ $RbCl$	$(iii)$ $780.0 \text{ nm}$
$(d)$ $CsCl$	$(iv)$ $589.2 \text{ nm}$

The compound which is not associated with the Solvay ammonia process for the production of $Na_2CO_3$ is:

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Match List-$I$ with List-$II$:

List-$I$ (Salt) List-$II$ (Flame colour wavelength)

$(a)$ $LiCl$ $(i)$ $455.5 \text{ nm}$

$(b)$ $NaCl$ $(ii)$ $670.8 \text{ nm}$

$(c)$ $RbCl$ $(iii)$ $780.0 \text{ nm}$

$(d)$ $CsCl$ $(iv)$ $589.2 \text{ nm}$

Choose the correct answer from the options given below:

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