Which alkaline earth metal carbonate decompos | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) The thermal stability of alkaline earth metal carbonates increases down the group as the electropositive character of the metal increases.$Mg^{2+}

Vedclass · Accepted Answer

$MgCO_3$

Vedclass · Answer

(A) The thermal stability of alkaline earth metal carbonates increases down the group as the electropositive character of the metal increases.$Mg^{2+}$ has the smallest ionic radius among the given options, which leads to high polarising power.This high polarising power distorts the electron cloud of the carbonate ion $(CO_3^{2-})$ more effectively, weakening the $C-O$ bond.Therefore, $MgCO_3$ requires the least amount of energy to decompose compared to $CaCO_3$, $SrCO_3$, and $BaCO_3$.

Which alkaline earth metal carbonate decomposes most easily?

Similar Questions

The carbonates of alkaline earth metals decompose on heating to give:
$I$. $CO_2$
$II$. Metal oxide
$III$. $H_2 O$
$IV$. $CO$

Give the preparation,properties,and uses of calcium oxide or quick lime $(CaO)$.

The correct order of density of $Be$,$Mg$,$Ca$,$Sr$ is

What is the substance known as 'blanc fixe' used in paints?

Highest melting point among the following is displayed by

Vedclass Test Series

Exam Paper Generator

Online Exam Module