In manufacture of sodium carbonate from Solvay (or ammonia soda) process the raw material used is:

N a O H

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N a_{2} S O_{4}

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N a C l

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N a H C O_{3}

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Solution

The correct option is D $N a C l$
The Solvay process is used for the preparation of the sodium carbonate. It uses NaCl as a raw material
The steps involved in the Solvay Process can be given as follow:
$N H_{3} + C O_{2} + H_{2} O \to N H_{4} H C O_{3}$
$N a C l + N H_{4} H C O_{3} \to N a H C O_{3} + N H_{4} C l$
$2 N a H C O_{3} 150^{o} C - -- \to N a_{2} C O_{3} + C O_{2} + H_{2} O$
$2 N H_{4} C l + C a (O H)_{2} \to 2 N H_{3} + H_{2} O + C a C l_{2}$ (by product)

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