On heating a mixture containing 1 mole each of $L{i_2}C{O_3},\,N{a_2}C{O_3}{\rm{ }}\,\,{\rm{and}}\,\,{\rm{ }}MgC{O_3}$______ is formed

NEET UG CHEMISTRY MCQ: S-BLOCK ELEMENTS

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On heating a mixture containing 1 mole each of

L{i_2}C{O_3},\,N{a_2}C{O_3}\mathrm{ }\,\,\mathrm{and}\,\,\mathrm{ }MgC{O_3}

______ is formed

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Correct option: A

2 moles of

C{O_2}

Option A (2 moles of CO2) is correct because MgCO3 decomposes to MgO and CO2, while Li2CO3 decomposes to Li2O and CO2. Na2CO3 does not decompose under normal heating.

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