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Uses of Calcium Carbonate

Which of the ...

Question

Which of the following substances is not used as a raw material in solvay's process?

A

Sodium chloride

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B

Calcium carbonate

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C

Ammonia

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D

Sodium hydroxide

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Solution

The correct option is A Sodium chloride
Solvay's process is a method to prepare sodium carbonate. The raw materials used here are $C a C O_{3}, N H_{3}$ and $N a O H$ .

$N a C l + N H_{3} + H_{2} O + C O_{2} ⟶ N a H C O_{3} + N a C l$

$2 N a H C O_{3} Δ - \to N a_{2} C O_{3} + H_{2} O + C O_{2}$

Therefore, the option is A.

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