Question

# What are the raw materials used in Solvay's process?

A
NaCl,NH3,CaCO3
B
NaOH,CO2
C
NaCl,CaCO3,C,H2SO4
D
NH3,H2O,NaCl

Solution

## The correct option is A $$NaCl, NH_3, CaCO_3$$the raw materials used in Solvay's process are: $$NaCl, NH_{ 3 }, and\, CaC{ O }_{ 3 }$$. The following reaction in solvay's process took place:$$CaC{ O }_{ 3 }\quad \rightarrow \quad CaO\quad +\quad C{ O }_{ 2 }$$$$2N{ H }_{ 3 }\quad +\quad C{ O }_{ 2 }\quad +\quad { H }_{ 2 }O\quad \rightarrow \quad { (N{ H }_{ 4 }) }_{ 2 }C{ O }_{ 3 }$$$${ (N{ H }_{ 4 }) }_{ 2 }C{ O }_{ 3 }\quad +\quad CO_{ 2 }\quad +\quad { H }_{ 2 }O\quad \rightarrow \quad 2N{ H }_{ 4 }HC{ O }_{ 3 }$$$$N{ H }_{ 4 }HC{ O }_{ 3 }\quad +\quad NaCl\quad \rightarrow \quad NaHC{ O }_{ 3 }\quad +\quad N{ H }_{ 4 }Cl$$$$2NaHCO_3 \, \rightarrow \, Na_2CO_3 \, + \, H_2O \, + \, CO_2$$Chemistry

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