A) \[{{K}_{2}}C{{O}_{3}}\]
B) \[N{{a}_{2}}C{{O}_{3}}\]
C) \[BaC{{O}_{3}}\]
D) \[L{{i}_{2}}C{{O}_{3}}\]
Correct Answer: D
Solution :
Thermal stability of carbonates increases on moving down a group. Thus, lithium carbonate,\[L{{i}_{2}}C{{O}_{3}}\]is least thermally stable. \[L{{i}_{2}}C{{O}_{3}}\xrightarrow{\Delta }L{{i}_{2}}O+C{{O}_{2}}\uparrow \]
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