___________ is unstable in air and is kept in CO_2 atmosphere to avoid decomposition.

___________ is unstable in air and is kept in CO_2 atmosphere to avoid

1.	___________ is unstable in air and is kept in CO_2 atmosphere to avoid decomposition.
Answer» `BeCO_3` `MgCO_3` `CaCO_3` `BaCO_3` ANSWER :A