On heating which of the following releases CO2 most easily ?

Question

On heating which of the following releases CO2 most easily ? (A) MgCO3  (B) CaCO3  (C) K2CO3  (D) Na2CO3

Tardigrade Admin · Accepted Answer

On heating, MgCO 3, CO 2 releases most easily. This is due to the small size of the resulting oxide ion. The radii of the oxide ion and Mg 2+ ion are nearly same and hence they pack together tightly with the result its formation (i.e decomposition of its carbonate) is easy and requires less energy.

Q. On heating which of the following releases $C O_{2}$ most easily ?

$M g C O_{3}$

$C a C O_{3}$

$K_{2} C O_{3}$

$N a_{2} C O_{3}$

Q. On heating which of the following releases CO2​ most easily ?

MgCO3​

CaCO3​

K2​CO3​

Na2​CO3​

Q. On heating which of the following releases $C O_{2}$ most easily ?

$M g C O_{3}$

$C a C O_{3}$

$K_{2} C O_{3}$

$N a_{2} C O_{3}$