On heating which of the following CO2 releases most easily?
A
MgCO3
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
B
CaCO3
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
K2CO3
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
Na2CO3
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution
The correct option is BMgCO3 On heating, MgCO3,CO2 releases most easily. This is due to the small size of the resulting oxide ion.
The radii of the oxide ion and Mg2+ 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.