The thermal stability of BaCO 3- CaCO 3- SrCO 3 and MgCO 3 decreases in the orderA- BaCO 3- SrCO 3- MgCO 3- CaCO 3B- CaCO 3- SrCO 3- MgCO 3- BaCO 3C- MgCO 3- CaCO 3- SrCO 3- BaCP 3D- BaCO 3- SrCO 3- CaCO 3- MgCO 3

The correct option is D BaCO_3 gt; SrCO_3 gt; CaCO_3 gt; MgCO_3In salts of polyatomic anion, the anionic electron cloud is polarized by the cation. Gr ...

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Byju's Answer

Standard XII

Chemistry

Preparation and Properties of Potassium Carbonate

The thermal s...

Question

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

B a C O_{3} > S r C O_{3} > M g C O_{3} > C a C O_{3}

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C a C O_{3} > S r C O_{3} > M g C O_{3} > B a C O_{3}

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M g C O_{3} > C a C O_{3} > S r C O_{3} > B a C P_{3}

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B a C O_{3} > S r C O_{3} > C a C O_{3} > M g C O_{3}

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Solution

The correct option is D $B a C O_{3} > S r C O_{3} > C a C O_{3} > M g C O_{3}$
In salts of polyatomic anion, the anionic electron cloud is polarized by the cation. Greater the polarising power smaller the thermal stability and hence thermal stability of the alkaline metal carbonates decreases down the group.

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Similar questions

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 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. Arrange the following in increasing lattice energy.

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

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

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

Q. Decomposition temperature of

C a C O_{3}

(s) is approximately

900^{0} C

. Which of the following decompose below

900^{0} C

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The thermal stability of BaCO3,CaCO3,SrCO3 and MgCO3 decreases in the order

The correct option is D BaCO3>SrCO3>CaCO3>MgCO3In salts of polyatomic anion, the anionic electron cloud is polarized by the cation. Greater the polarising power smaller the thermal stability and hence thermal stability of the alkaline metal carbonates decreases down the group.

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