Question

Which of the elements form thermally stable carbonate?

• A. A
• B. B
• C. C
• D. D
• E. E
• F. F
• G. G

Answer 1

Answer: (C), (E), (G)

The correct options are
C C
E E
G G

Except Lithium carbonate (A) remaining carbonates of alkali metals are most stable towards thermal energy and where as metal carbonates of alkali earth metals are not stable they decmpose to give metal oxide and carbon dioxide.

Hence option C,E and G are correct.