A) \[CaC{{O}_{3}}\]
B) \[N{{a}_{2}}C{{O}_{3}}\]
C) \[BaC{{O}_{3}}\]
D) \[CdC{{O}_{3}}\]
Correct Answer: B
Solution :
Alkali metal carbonates e.g., \[N{{a}_{2}}C{{O}_{3}},\] do not decompose on heating. All other carbonates decompose on heating giving \[C{{O}_{2}}\] gas. \[CaC{{O}_{3}}\xrightarrow{\Delta }CaO+C{{O}_{2}}\]
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