Metal carbonates decompose on heating to give metal oxide and carbon dioxide. Which of the metal carbonates is most stable thermally?

M g C O_{3}

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C a C O_{3}

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S r C O_{3}

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B a C O_{3}

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Solution

The correct option is D $B a C O_{3}$
$B a C O_{3}$ is most thermally stable as the size of $B a^{2 +}$ is big due to which it is having low polarising power and thus cannot polarize oxygen electrons due to which carbonates of large cations are stable.

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Similar questions

Metal carbonates decompose on heating to give metal oxide and carbon dioxide. Which of the metal Carbonates is most stable thermally?
(a) $M g C O_{3}$ (b) $C a C O_{3}$ (c) $S r C O_{3}$ (d) $B a C O_{3}$

Q. The thermal stability of alkaline earth metal carbonates–

M g C O_{3}, C a C O_{3}, S r C O_{3}

and

B a C O_{3}

, follows the order:

Which one of the alkaline earth metal carbonates is thermally the most stable?

(a) MgCO₃ (b) CaCO₃ (c) SrCO₃ (d) BaCO₃

Q. The thermal stability of alkaline earth metal carbonates-

M g C O_{3}, C a C O_{3}, S r C O_{3}

and

B a C O_{3}

, follows the order:

Q. The thermal stability of

B a C O_{3}, C a C O_{3}, S r C O_{3}

and

M g C O_{3}

decreases in the order

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Metal carbonates decompose on heating to give metal oxide and carbon dioxide. Which of the metal carbonates is most stable thermally?

The correct option is D BaCO3BaCO3 is most thermally stable as the size of Ba2+ is big due to which it is having low polarising power and thus cannot polarize oxygen electrons due to which carbonates of large cations are stable.

The correct option is D $B a C O_{3}$
$B a C O_{3}$ is most thermally stable as the size of $B a^{2 +}$ is big due to which it is having low polarising power and thus cannot polarize oxygen electrons due to which carbonates of large cations are stable.