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Question

Which of the following reactions correctly represent(s) the preparation of MgCO3?

A
Mg(HCO3)2heatMgCO3+H2O+CO2
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B
Mg(HCO3)2+MgO2MgCO3+H2O
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C
MgSO4+2NaHCO3MgCO3+Na2SO4+H2O+CO2
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D
None of these
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Solution

The correct options are
A MgSO4+2NaHCO3MgCO3+Na2SO4+H2O+CO2
B Mg(HCO3)2heatMgCO3+H2O+CO2
D Mg(HCO3)2+MgO2MgCO3+H2O
Mg carbonate can be produced by all of these reactions.
MgSO4+2NaHCO3MgCO3+Na2SO4+H2O+CO2
Mg(HCO3)2+MgO2MgCO3+H2O
Mg(HCO3)2heatMgCO3+H2O+CO2

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