The thermal stability of BaCO_3,CaCO_3,SrCO_3 | vedclass

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Question

(D) The thermal stability of alkaline earth metal carbonates increases as we move down the group due to the decrease in the polarizing power of the me

Vedclass · Accepted Answer

$BaCO_3 > SrCO_3 > CaCO_3 > MgCO_3$

Vedclass · Answer

(D) The thermal stability of alkaline earth metal carbonates increases as we move down the group due to the decrease in the polarizing power of the metal cation.As the size of the cation increases $(Mg^{2+} Consequently,the covalent character decreases and the ionic character increases,leading to higher thermal stability.Therefore,the order of decreasing thermal stability is $BaCO_3 > SrCO_3 > CaCO_3 > MgCO_3$.

The thermal stability of $BaCO_3$,$CaCO_3$,$SrCO_3$,and $MgCO_3$ decreases in the order:

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