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B
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C
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D
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Solution
The correct option is A Solvay process takes place as follows – (i)CaCO3→CaO+CO2(ii)NH3+H2O→NH4OH(iii)NaCl+NH4OH+CO2→NaHCO3+NH4Cl(iv)2NaHCO3Δ→Na2CO3+H2O+CO2(v)RegenerationofNH3:CaO+NH4Cl→2NH3+H2O+CaCl2