Correct order of thermal stability of K2CO3,CaCO3,MgCO3 & BeCO3 is
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a
BeCO3
b
K2CO3
c
MgCO3 < BeCO3
d
BeCO3
answer is A.
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Detailed Solution
As the basicity of metal hydroxides increases doum the group, thermal stability of their Carbonates increases in the same order. Group 1 compounds are more stable than group 2 compounds.