Thermal stability of MCO_3 is in order: | 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 $(MCO_3)$ increases as the size of the metal cation $(M^{2+})$ increases down the group.T

Vedclass · Accepted Answer

$BeCO_3 < MgCO_3 < CaCO_3 < SrCO_3 < BaCO_3$

Vedclass · Answer

(A) The thermal stability of alkaline earth metal carbonates $(MCO_3)$ increases as the size of the metal cation $(M^{2+})$ increases down the group.This is because the larger cation polarizes the large carbonate ion $(CO_3^{2-})$ less effectively,making the $M-O$ bond stronger and the carbonate ion more stable.The order of ionic radii is $Be^{2+} Therefore,the thermal stability order is $BeCO_3 < MgCO_3 < CaCO_3 < SrCO_3 < BaCO_3$.

Thermal stability of $MCO_3$ is in order:

Similar Questions

Among the sulphates of alkaline earth metals,the solubilities of $BeSO_4$ and $MgSO_4$ in water,respectively,are

The increasing order of reactivity of alkaline earth metals with water is

An element has an atomic number of $56$. To which of the following does it belong?

$A$ hydrated colorless solid $(A)$ is water soluble and finds use in medicine as a purgative. When a solution of $(A)$ is treated with ammonium phosphate,a white precipitate is formed. $(A)$ gives a pink mass in the cobalt nitrate cavity test. What is $(A)$?

The halides of alkaline earth metals form hydrates such as $MgCl_2 \cdot 6H_2O$,$CaCl_2 \cdot 6H_2O$,$BaCl_2 \cdot 2H_2O$,and $SrCl_2 \cdot 2H_2O$. This indicates that the halides of group $2$ elements are:

Vedclass Test Series

Exam Paper Generator

Online Exam Module