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Question

Which one of the following reactions is not associated with the Solvay process of manufacture of sodium carbonate?


A
NaCl+NH4CO3NaHCO3+NH4Cl
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B
2NaOH+CO2Na2CO3+H2O
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C
2NaHCO3Na2CO3+H2O+CO2
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D
NH3+H2CO3NH4HCO3
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Solution

The correct option is B $$2NaOH + CO_2\rightarrow Na_2CO_3 + H_2O$$
Solvay Process:
$$2NH_3 + H_2O + CO_2 \rightarrow (NH_4)_2CO_3$$
$$(NH_4)_2CO_3 + CO_2 + H_2O \rightarrow 2NH_4HCO_3$$
$$NH_4HCO_3 + NaCl \rightarrow NH_4Cl + NaHCO_3$$
$$2NaHCO_3 \rightarrow Na_2CO_3 + H_2O + CO_2$$

Hence,option B is correct.

Chemistry

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